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  • Glory in the Morning, Quiet at Night

    Morning Glory is the best name, it always refreshes me to see it.

    ~Henry David Thoreau

    Some parts of the garden are starting to wind down now, but the wilder side is still full of life and beauty. The cooler nights and recent rains have perked things up a bit, the scattered wildflowers are in full bloom, the bean plants are still producing, and the fall garden veggies are just coming into their own. But twining everywhere along the fences and any place I haven’t weeded in the past few weeks are the tubular flowers of Morning Glory.

    Common Morning Glories
    Common Morning Glory twining in the garden (click photos to enlarge)

    Morning Glories belong to the family, Convolvulaceae. The largest in my garden are the deep purple flowers of the Common Morning Glory, Ipomoea purpurea. This genus also contains one of my favorite food plants, Ipomoea batatas, the Sweet Potato. That important North Carolina crop forms roots as it trails along the ground. The edible “potatoes” are food storage structures on the roots. Sweet Potatoes are not related to our other types of edible potatoes. Interestingly, the seeds of certain species of Morning Glory are considered toxic, but have been used by some native peoples as ceremonial hallucinogens and for medical purposes.

    Common Morning Glory
    Common Morning Glory flowers are up to 3 inches across

    Common Morning Glory is a strikingly beautiful species believed to be native to Central and South America. It has naturalized throughout most of the temperate portions of the world. Considered a noxious weed by many, it is also planted as an ornamental and has many cultivars. I allow mine to grow and bloom, but usually do a heavy weeding in the Fall. Seeds are still scattered over the garden and require frequent weeding, but the beauty of the flowers and their attractiveness to bees, butterflies, and hummingbirds must help soften my outlook a bit.

    Common Morning Glory 1
    Morning Glory flower with rain drops

    As the name implies, Morning Glory flowers open for a few hours in the morning and then start to close later in the day. Most flowers open for only one day.

    Common Morning Glory back of flower
    Back side of flower

    These past couple of days, the flowers have been coated with rain drops, adding to their beauty. The flowers are simple, yet elegant, even when viewed from the back side.

    Morning Glory flower bud
    Morning Glory flower bud, aperture priority, no flash

    The creases and bold lines are remnants of the curved folds in the flower in its bud stage.

    Morning Glory flower bud 1
    Morning Glory flower bud, manual mode with twin flash

    The flower buds are beautiful structures, reminding me of some sort of cherry-flavored soft serve ice cream in a green cone.

    Morning Glory closed 1
    Flowers close late in the afternoon

    I went out a little while ago and the flowers I had looked at earlier today were all closed. I am guessing that these will fall off before tomorrow morning, but maybe some will live to open another day…we will see.

    Morning Glory closed
    One flower may be finished while another waits its turn

    When I was out checking on the status of the blooms, a hummingbird was busy nectaring at the few flowers that remained open. Even when closed, the patterns are intriguing if you take the time to give them a closer look.

     

     

  • To the Sea

     Salmon abound in great quantities at certain seasons of the year, when the water in every direction seems to be filled with them…

    ~James Alden, U.S. Coast Survey, 1853, describing the waters around San Juan Island

    After camping and hiking in Olympic National Park, the next leg of the journey was by ferry, to San Juan Island. Quite a contrast, in terms of the number of people and the general feel of the place – less wild at first, but still beautiful.

    Views from the ferry headed to San Juan Island
    View from the ferry headed to San Juan Island (click on photos to enlarge)

    There are islands, large and small, everywhere in this part of Washington. I wanted to go to San Juan Island for one thing – to see Killer Whales, now commonly referred to as Orcas, from their scientific name, Orcinus orca.  After riding a couple of ferries to reach the island, the drive to the lodging was quite a contrast to the busy, tourist-oriented town of Friday Harbor. The marina crammed with huge sailboats and yachts gave way to rolling farmland and patches of forest.

    Kayaks on beach
    A quiet cove offers a respite from the winds and waves in the channel

    The goal the next morning was a 5-hour sea kayak trip from Roche Harbor to hopefully see some wildlife. I knew it was a long shot, but seeing these graceful marine mammals from a kayak would be magical. Unfortunately, the weather did not cooperate. It was pleasant paddling out of the harbor and through the channel, surrounded by unbelievable homes along the shore, but when our group headed out and around the island where the whales would most likely be, the wind was ferocious and the waves made us all struggle in our tandem kayaks. I was impressed by how much wave action these kayaks could handle, but the guide wisely decided to turn back rather than expose everyone to a long paddle across such choppy conditions.

    South Beach drfitwood piles
    Enormous piles of driftwood line the cove at South Beach

    The proprietor of the lodging had recommended a sunset trip to South Beach and it turned out to be a good recommendation. South Beach is well known for the large piles of driftwood washed in from the sea, and grasslands stretching down the the rocky headlands. A beautiful scene surprisingly shared with only a few people that evening.

    The next morning, the last in this part of the state before heading home, was spent on a whale watch boat. The boats have a higher probability of seeing whales than the kayak tours because they can obviously travel greater distances in search of these highly mobile marine mammals. An added bonus was having a pair of naturalists on board to answer any questions and give background on the whales we saw (if any). At check-in, they said there had been whales sighted earlier that morning so things looked promising. I finally had my 300mm telephoto along (for the first time on the trip) so I was anxious to head out.

    Orcas 2
    The high dorsal fins of Orcas can be seen at considerable distances

    We soon could see a gathering of a few other boats and the captain announced there was a pod of Orcas up ahead. Then we saw the tell-tale large dorsal fins slicing through the water. Killer Whales are impressive animals, boldly patterned in black and white, and reaching lengths up to 30 feet and weights of 6 tons. They are the most cosmopolitan group of marine mammals, being found in all the worlds oceans.

    One of the on-board naturalists explained that these were a group of transient Orcas. In the 1970’s, a whale scientist named Michael Bigg, was the first to document that there was more than one population of Orcas in the area, and that the different populations did not behave the same, or interact with each other. He used the terms resident and transient to describe the different groups in the Pacific Northwest (they now also recognize a third group called offshores). A major distinguishing factor between these two types is their diet. Residents are fish-eaters, and not just any fish, but salmon, and not just any salmon, but primarily Chinook Salmon. The two groups of resident Killer Whales are in near-shore waters from spring until fall. Their whereabouts in winter are still being uncovered using satellite tags. Transients tend to travel in smaller pods and are warm-blooded meat-eaters, primarily hunting seals, porpoises, and whales. The different populations of Killer Whales speak different languages, do not generally interact, and are not known to interbreed.

    Orcas 3
    Members of a transient Orca pod swim near our boat

    We eased into position as the whales swam amongst the viewers. They seemed to be just cruising along, not hunting, even though this channel is known as one of the prime feeding areas for the transient groups due to the abundance of seals and porpoises. Killer Whales can remain submerged for several minutes, so once they dove, it was always amazing to see where they would surface.

    Orca spy hopping

    The action was quick and happening all around the boat, so it was tough getting good photos. While watching one small group, one of the whales suddenly came straight up out of the water in a behavior known as spyhopping. Observers say that Orcas often spyhop when near boats and it is believed to simply be a way for them to look around. Whatever the reason, it is a dramatic behavior and brought a chorus of oohs and aahs from our boat.

    Orca dorsal
    An Orca approaches our boat

    The next few minutes brought another chorus of exclamations as a group of three Orcas turned and swam directly at our boat. Rules state that whale watching boats must stay 200 yards away from Killer Whales but you can’t always regulate what the whales do. This group seemed curious and passed right by the boat. I just looked as they passed by the bow, as the telephoto was too much lens, but what an experience for all on board.

    The captain finally gave us a five minute warning and we watched the whales swim near some other boats before we turned toward home. Along the way, we stopped to see some other wildlife, including a Bald Eagle, and a bonus sighting of a Mink running along the shoreline.

    Harbor Seals hauled out on rock
    Harbor Seals hauled out on rocks at low tide

    We also stopped at a rock island with a large number of Harbor Seals, one of the primary food items of the Orcas we had just observed. Harbor Seals haul out on rocks at low tide to thermoregulate and rest. They vary in color from gray to brown and are distinguished by their splotchy color pattern.

    Harbor Seals hauled out on rock 1
    One seal had unusual coloration

    But one of the seals stood out, as it had a very rust-colored head and light body color. References state that this color is probably due to iron oxidation of sediments these individuals accumulate on their fur.

    Stellar's Sea Lions and Harbor Seals
    The seals shared their rock with a group of Stellar Sea Lions

    Sharing the rock, and dwarfing the seals, were a group of Stellar Sea Lions. Harbor Seals weigh in at 200-300 pounds, whereas the Stellar Sea Lions attain weights of up to a ton or more for large males. Seeing them lounging on the rocks made it even more surprising that they were food for the whales. I didn’t notice until looking at the images, but if you look closely at some of the seals you can see small wounds surrounded by patches of blood. I don’t know what caused these, but it could be something as simple as scrapes from hauling out on barnacle-encrusted rocks, or it could be near misses in encounters with Orcas or other predators. Either way, I think I might find anther place to swim if I was them, given what we had just seen.

  • A Park Made for Hiking

    Of all the paths you take in life, make sure a few of them are dirt.

    ~John Muir

    I just returned from a wonderful trip to the Pacific Northwest where I had two main goals – visit Olympic National Park, and try to see Orca Whales. The first part of the trip was to the incredibly diverse habitats of Olympic National Park. The park brochure touts it as being three parks in one, and I wanted to visit all three major ecosystems – the mountains, the primeval forests, and the coast. Looking at the park map you see that there is no road that cuts through the park. Instead, Highway 101 skirts around the outer edges of the park, with a few spur roads penetrating to some of the more scenic spots. The central interior of the park is thus isolated from roads and contains impressive wild lands. In fact, 95% of the almost one million acres comprising this magnificent park is designated as wilderness.

    Hurricane Ridge ONP
    Hurricane Ridge in Olympic National Park (click photos to enlarge)

    It seems as though the park was designed for folks that want to hike, to experience the environment in the simplest fashion, the one way to truly immerse yourself in the wildness of a place. First stop was one that I had read could be very crowded – Hurricane Ridge. There is a partially paved trail heading up slope from the Visitor Center that traverses a ridge line offering spectacular views of the surrounding mountains. At an elevation of about 5200 feet, the habitat here is considered sub-alpine, with species such as Douglas-Fir and Subalpine Fir dominating.

    Hurricane Ridge ONP 2
    Sunset from Hurricane Ridge

    The ranger had said the crowds thinned considerably late in the day, and so it was. Surprisingly so, since the sunset scenery was pretty spectacular, and set the tone for the next several days in the park.

    Sol Duc ONP 1
    Lowland forest in the Sol Duc Valley

    The first stop the next morning was along the road to Sol Duc. Since it was early, there were almost no cars to be seen (or heard). A pull out signaled a trail head and it turned out to be a short magical loop trail through a forest of giants. These lowland forests are found in a few of the park’s river valleys like Sol Duc. They have a mild climate, abundant rainfall, and deep soils. This produces a multi-layered forest with huge old growth trees of Western Hemlock, Western Redcedar, and Douglas-Fir. The walk through the aptly-named Ancient Groves Nature Trail, was silent, solemn, and spell-binding. I didn’t want to leave this green cathedral, but it was still a long drive to the campground.

    Queets campsite
    Campsite amongst the giants of Queets (iPhone)

    One site remained after driving the several miles of dirt road to reach the Queets campground. But what a campsite! Near the river and surrounded by the giant trees of the temperate rainforest. Huge Sitka Spruce, Western Hemlocks, Douglas-Fir, and Western Redcedar towered skyward, with a blanket of sprawling Sword Ferns covering the ground beneath.

    Sol Duc ONP 2
    Lush growth and giant logs in the temperate rainforest

    The temperate rainforests protected in this park are among the few survivors of old growth forests that once stretched from coastal Oregon to southeast Alaska. Forests like these are found in only a few other locations in the world, so to walk beneath their canopy is a privilege. These unique environments are the result of some very special factors brought on by their westward facing location along the coast – abundant rainfall (up to 12 to 14 feet per year from storms rolling in off the Pacific) and moderate temperatures (rarely going below freezing or above 80 degrees). Many of the trees are hundreds of years old, attain heights of over 250 feet, and may be over 50 feet in circumference. With the lush ground cover and profuse coating of lichens and mosses on the tree trunks and limbs, I felt as if I was back in the tropical rainforests of Belize or the Amazon, but with the air conditioning turned on.

    Ruby Beach stacks
    Sea stack at Ruby Beach

    After soaking in the beauty of the forests in several locations, it was time to experience the unique coastline of the park. It is separated from the bulk of the park by private lands, several Native American reservations, and state and national forests. One of the more accessible beaches is Ruby Beach, so a quick stop was in order when the sign appeared along the road. Due to the easy access, it was predictably crowded, but it was stunning nevertheless.

    Ruby Beach rocks
    Rocks along the tide line at Ruby Beach (iPhone)

    And I experienced what was to become one of my favorite sounds in the park, the clacking of rounded rocks being washed by incoming ocean waves. That set the stage for what was probably my favorite experience in the park, a backpacking/camping trip starting at Third Beach.

    Sea stack along headland at Third Beach
    Sea stack along headland at Third Beach

    While it was my favorite, it certainly wasn’t the easiest. Turns out that tides along these beaches are a lot greater than I am used to – up to 8 feet, making it impossible to simply walk along the beach to most campsites. Instead, you must climb and hike over the many headlands that just out to meet the ocean, often climbing steep inclines with the aid of knotted ropes put there for that purpose.

    Sea stacks at sunset 1
    Sea stacks at sunset
    Sea stacks at sunset 3
    Sea stacks silhouetted by twilight over the ocean (iPhone)

    After questioning the decision a few times, it soon became apparent why it was worth it as the sun started to drop into the ocean.

    tidepools
    Low tide along the beach at Scott Creek

    Low tide exposes rocks and tide pools and a host of associated life.

    Ochre Sea Star
    Ochre Sea Star
    Ochre Sea Stars
    The Ochre Sea Stars come in a variety of colors (iPhone)

    Scattered amongst the rocks and pools were so many creatures and plants that I was not familiar with…but one organism was quick to catch your attention – the Ochre Sea Star. The variety of colors in this common species ranges from bright purple, to maroon, and, to what seemed to be the dominant color morph, bright orange.

    sea stacks in fog
    Morning fog rolling in along the beach

    As beautiful as sunset was, the sunrises along the coast were even more breath-taking. The early morning fog bank played cat and mouse with the sea stacks giving the entire scene a mystical feel.

    Sea stacks at sunrise 4
    Sea stacks at sunrise (iPhone)

    When the first light hit the sea stacks, the contrast with the dark waters and rocks at low tide was stunning.

    In addition to the tidepool creatures , there was a lot of other wildlife along the beach, although my lack of a telephoto lens prevented photographs. A pair of Bald Eagles graced the sea stacks, as did numerous Double-crested Cormorants, and Western Gulls. A family of River Otters came out onto the beach from Scott Creek and played in the ocean under the watchful gaze of thirty or more distant Harbor Seals lounging on the rocks at low tide. And one morning, one of the Raccoons they warn you about as possible camp raiders, picked its way along the rocks at low tide looking for an easy meal. The return hike was timed to coincide with low tide, eliminating the scramble over one small headland. The others required a climb – but it turned out to be worth every weary step.

    Third Beach trail
    Morning fog rolling into the forest on the return trail

    The fog gave the whole scene the feel of a soft painting.

    Fog in forest 3
    Sunlight highlighting the forest from the beach
    Fog in forest
    Sunrise through the fog in the forest (iPhone)

    Then the sun rose high enough to pierce the grayness with shafts of light streaking through the looming tree trunks…unforgettable.

    It was a long drive to the last campsite in a totally different environment – the treeline in the mountains at a place called Deer Park.

    Deer Park at sunset
    Deer Park at sunset

    At an elevation of 5400 feet, Deer Park is reached by a long, narrow, winding gravel road that leaves you wondering if you will ever reach your destination. The quiet of the space and silhouettes of the trees against the receding waves of mountains made for a beautiful sunset. The sky was clear, so the stage was set for an incredible night sky.

    Night sky at Deer Park
    Milky Way from Deer Park campground

    It did not disappoint. Wish I had learned about night sky photography before this trip, but I am definitely going to learn now for the next time I am in such an amazing skyscape.

    Deer Park pano
    Panorama from above the Deer Park campground (iPhone)

    The next morning, the view seemed endless, and the combination of mountain peaks and the fog-covered waters of the Strait of Juan de Fuca was spectacular.

    Over the span of several days it it would be easy to think you had traveled hundreds of miles to a variety of stunning landscapes from the coast to the mountains. But, instead, it was a series of short drives and walks in some of the most stunning places I have been and all in one awe-inspiring place, Olympic National Park.

    Here are a few more images from this beautiful park.

    Deer Park sunrise
    Deer Park sunrise above the tree line (iPhone)
    tidepool vegetation
    Patterns in the tidepools
    Ochre Sea Star 2
    Ochre Sea Star at low tide (iPhone)
    Queets River
    Reflections in a pool along the Queets River (iPhone)
    sea stack in cove B and W
    Sea stack in cove in black and white
    Sea stacks at sunrise
    Sea stacks at sunrise (iPhone)
    Sea stacks at sunset B and W
    Sea stacks at sunset in black and white
    Third Beach headland forest pano
    Third Beach headland forest panorama (iPhone)
    Third Beach headland forest
    Third Beach headland forest in black and white (iPhone)

     

     

     

     

     

     

     

  • Baby Cat

    It’s always remarkable how much we each see when we slow down, cast our gaze narrowly but intently, and just watch.

    ~Zoe Weil

    I was out walking a country gravel road the other day, hoping to find some caterpillars. I did see some signs of Luna Moth larval feeding on the ubiquitous Sweet Gums, but not much else. Fnally, I caught something out of the corner of my eye…

    Polyphemus larva - early instar 2
    Early instar, Polyphemus Moth larva (click photos to enlarge)

    A tiny green eating machine, sort of chunky, with small clusters of bristles on red-tipped tubercles. It was on a small Winged Elm tree. I had never seen a larva like this on that tree species, but it looked like an early instar of a moth species I have seen many times in the past. When I checked Bug Guide, it was, indeed, a Polyphemus Moth caterpillar, Antheraea polyphemus.

    Polyphemus larva early instar 3
    Polyphemus Moth larva, lit from side with twin flash

    I am guessing it could be a late first, or early second instar, so this little fella has a few more weeks of eating and growing before it becomes the large, plump, bright green caterpillar I have seen and used in programs so many times before . They resemble the larvae of Luna Moths, but lack the long stripe that runs most of the length of the abdomen, and, instead, have a series of oblique stripes that pass through the spiracles along the abdomen. Polyphemus larvae feed on a variety of deciduous tree leaves, but I have found them most often on various oaks and River Birch. Hopefully, this little guy will still be feeding by the time BugFest rolls around on September 20.

     

  • A Wasp at My Window?

    Some of these resemblances are perfectly staggering – to me they are a source of constant wonder and thrilling delight.

    Henry Walter Bates, in letter to Charles Darwin, 1861

    In one of my nightly checks of the visitors at my screens, a small wasp-like creature caught my eye. But a closer look revealed some interesting details.

    Dogwood Borer Moth 1
    At first glance, it looked like some sort of wasp (click photos to enlarge)

    The patterns and colors looked wasp-like, but the wings, lack of a constricted waist, feathery edges to the back of the wings, and the odd tip of the abdomen certainly did not. I decided it must be some sort of moth that was a mimic of a stinging insect. This type of mimicry, known as Batesian Mimicry, is named after English naturalist, Henry Walter Bates. It is quite common in various insect groups with various types of flies, moths, and some beetles being the leaders in the field around here of wasp and bee look-a-likes.

    Many predators that attack bees or wasps suffer painful stings. This is why many have learned to avoid insects with clear wings and yellow and black bands around their bodies. By mimicking stinging insects, the clearwing moths are able to avoid many predators and thus fly even during daylight hours. But, they are also attracted to lights, as was my visitor. 

    Dogwood Borer Moth 2
    Dogwood Borer Moth

    Scanning the field guides I think this one is a Dogwood Borer Moth, Synanthedon scitula. It is a member of the Clearwing Moth family, Sesiidae. I have reported on another group that often are called clearwings, the Snowberry Clearwing and Hummingbird Clearwing moths. But they are members of a different family, the Sphingidae (Sphinx Moths). This species is characterized by transparent wings with some dark scales near tips, a steely blue/black body with yellow stripes on the abdomen, and a rounded anal tuft on the end of the abdomen.

    Female moths lay their eggs in wounds on trees. Most of the larvae of this family of clearwings are borers in the limbs, trunks, bark, or roots of trees, shrubs, herbs and vines. The Dogwood Borer Moth’s larvae tunnel beneath the bark of a wide variety of deciduous trees such as beech, hickory, elm, dogwood, apple, and pecan. The galleries made by feeding larvae can cause a lot of damage to the host tree, plus it may give access to other potentially harmful species such as certain fungi.

    Dogwood Borer Moth
    Dogwood Borer Moth

    One reference stated that this group of moths take their deception one step further in that some species have legs with conspicuous tufts of hairs that are tipped with yellow scales. These resemble the pollen baskets on the hind legs of honeybees. He also commented on not knowing the deception value of the prominent tufts of feathery scales at the tip of the abdomen. I was unable to find anything that gave a clear function for these so-called anal tufts, although I wonder if it has something to do with pheromone distribution since they tend to be slightly different shapes in male and females. But, in spite of the tufts, the overall impression of this beautiful mimic is one of leave me alone or else, so, mission accomplished.

  • Patterns on the Pages

    In Nature’s infinite book of secrecy

    A little I can read.

    ~William Shakespeare

    I can read only a little, especially in the chapter on a new found interest, moths. They keep showing up (of course, I keep looking). I now have a routine of checking the screens before retiring for the night to see what might be out there. Usually, some small, tough to photograph, and even tougher for me to identify, specimens. But, every few nights, something really spectacular makes an appearance. One night last week, two large, and exquisitely patterned individuals found their way to my screen door.

    Widow Underwing underside
    A large moth fluttering at the screen door (click photos to enlarge)

    The first was hard to ignore – a large (wing span of over 3 inches) fluttering moth with bold stripes on the underside of the hind wings. I suspected one of the Underwings, but had not seen one with primarily black and white colors on the underside before.

    WIDOW UNDERWING
    Widow Underwing

    After a quick photo of the moth through the screen, I went out to find an intricately patterned beauty. It turned out to indeed, be one of the Underwings, Genus Catocala. This one is called the Widow Underwing, Catocala vidua. The group is so named because the genus name means “beautiful below” in Greek. Most have bold colors on their hind wings, which are usually only revealed when the moth is flying or startled. In this case, the hind wings are mainly black and white, but beautiful nonetheless, both above and below.

    WIDOW UNDERWING close up of pattern
    Close up of wing pattern of Widow Underwing

    The muted colors and intricate pattern of the dorsal surface of the forewings most likely serves this moth well when resting on tree bark in its habitat of deciduous forests. Larvae feed on leaves of hickory, walnut, and a few other tree species.

    Nearby, but much more subdued in its activity, was another beautifully patterned species.

    Zale lunata
    Lunate Zale Moth

    This one was also relatively easy to identify – a Lunate Zale Moth, Zale lunata. Smaller (wing span about 2 inches) than the first moth, it was equally intricate in its wing design, again mimicking tree bark, but perhaps with splotches of lichen. The lunate part of its name refers to the crescent-shaped splotches along the wing edges. But, in looking at various online sources, this species can be quite variable, so I am glad this one had prominent white splotches along the wings to make identification a bit easier. Larvae feed on a variety of shrubs and trees.

    Zale lunata close up of wing
    Close up of Lunate Zale Moth wings

    Looking closely at the patterns of these two moths helped me realize the incredible beauty and diversity of this group of insects and just reinforces my desire to learn to read more of the pages in this chapter of Nature’s book.

    NOTE: When I finished writing this post, I went out to check the screens and was rewarded with a bonus – a large female Imperial Moth (measured wing span of 5 inches)…hoping she lays eggs on nearby trees.

    Imperial Moth female
    Imperial Moth female

     

     

  • Chatham County Lines

    My apologies to the local bluegrass group of almost the same name…this is a bit of an unusual post in that it doesn’t highlight some interesting natural phenomenon I have stumbled across in my wanderings. Instead, I just wanted to share something I found amazing that has come calling to the edge of the land I call home.

    power line after clearing
    Power line adjacent to my home in Chatham County (click photos to enlarge)

    If you have followed this blog for very long you have heard me mention the large power line corridor that runs at the edge of this property. It is a bit strange living near such a thing, but the habitat it provides, in contrast to the heavily forested surroundings, has helped me appreciate it. It also doesn’t hurt that it is where my garden is located, a source of a lot of good eats and interesting natural happenings. Well, as anyone who lives near any type of power line easement knows, they require periodic maintenance to keep trees from growing up and creating potential problems with the lines. And so it was a little over a week ago that a Duke Energy representative came by the house to explain what was going to be happening to all those trees that had suddenly grown a bright neon orange mark on their trunks. They would be clearing the edges of the right of way of trees that might pose a hazard to the transmission lines. This typically includes trees in the corridor that mature at a height of greater than 15 feet; and trees outside the corridor that either now, or before the next maintenance cycle, could fall or otherwise endanger structures and equipment. He explained these trees would be ground up using a large machine. After discussing with the vegetation specialist, I decided to cut the hardwood trees along the line on this property and use them for firewood (although it certainly isn’t something I like doing this time of year). That still left a number of large pines that were marked.

    old-fashioned clearing
    Clearing the line the old-fashioned way

    So, after a couple of hot mornings cutting trees and limbing them up, I saw “the machine” down the power line. I could hear the grinding sound even though it was well over a half mile away. I figured it might take a couple of days to reach me.

    The ProGrind at rest
    The ProGrind at rest

    Boy, was I wrong. The next morning when I looked out, there it was, parked up the hill on the power line. It had magically appeared during the evening or early morning. Two guys showed up a little while later and it was ready to go to work. They had skipped way up the line because of a creek down where I had last seen them…they decided to come up to this access and work their way back to the creek. If you look in the top photo, you can see the tracks of the machine through the edge of the right of way.

    the grinding tool, a rotating drum with "teeth"
    The business end of the grinder, a rotating drum on an arm

    I was surprised to see no large blades on the rotating drum…it looks more like dull teeth. But the force of this tool when it hits a tree is unbelievable. They soon fired it up and, I must say, the operator was very skilled at avoiding nearby trees (in most cases). A short video clip will better explain how this tree-eating machine works.

    The tree in the video was probably about a foot or a little more in diameter. When doing larger trees, he usually pulled them down into the power line and then ground up the log and limbs where they laid. I walked down the line afterwards and looked at what was left.

    cleared forest edge
    Cleared edge of right of way

    The answer – not much, but a pile of chips and some branches.

    stump after grinding
    Large pine stump after grinding

    The machine took the stumps down to just above the ground. In talking with the workers, I discovered that another crew will follow behind to clean up and take down trees in “maintained” areas like mine, so the tree-cutting I helped with might not have been necessary after all. But, getting the firewood, leaving as little a trace as possible, and some peace of mind, was probably worth it. I must say, I am glad this was happening after most birds have finished nesting. But, I suppose it is a necessary process, and this incredible hulk of a machine certainly seems an efficient way to get the job done.

     

  • Tattered Wings

    The wings came down as the only evidence that such a creature had soared.

    ~Henry David Thoreau, commenting on a pair of Luna Moth wings that floated down onto the ground after the moth was eaten by a bird

    Walking back from the garden yesterday, I spotted some evidence of a passing…the passing of one of our most regal insects, a Luna Moth, Actias luna.

    Luna Moth wing with dew 2
    Hind wing of a Luna Moth on the ground near my driveway (click on photos to enlarge)

    The evidence was a tattered hind wing on the ground. Although a sign of death, it also is an affirmation that these beautiful nocturnal insects are on the wing again. They typically have two (sometimes three) generations per year in this area. This moth was part of their final flight period this calendar year. Female Lunas that survive and mate will lay 200 or more eggs on numerous host plants (Sweet Gum seems to be a favorite in my area). Caterpillars hatch within a week or so, and then feed for a few weeks until they pupate in a brown silken cocoon, usually made in the leaf litter or on a twig. They will spend the winter in the cocoon and emerge next spring and start a new generation.

    I don’t know whether this Luna Moth was able to successfully tend to a new generation or not. They have many predators in their short time as an adult. Nocturnal predators include bats, flying squirrels, and probably anything else that happens to come across one of these large morsels. I have seen Gray Squirrels eating them during the day, as well as many birds. As rural areas become developed, moths, in general, are susceptible to predation when lured by lights, making them vulnerable to visual predators the next morning.

    Luna Moth wing with dew
    The eye on the wing

    When I found the wings, there had been three laying in a pile beneath a maple tree. The next morning when I went out to photograph them, there was only one. I wondered what had made off with the remaining ones. When I bent down, I could see the dew drops covering the eye of the wing. 

    Luna Moth wing eye spot with dew
    Beauty in the eye of the moth

    The “eyes” of the Luna Moth have always fascinated me. The wing scales create a detailed pattern with such striking colors, enhanced on this day by tiny magnifiers of dew drops.

    Luna Moth wing eye spot
    The eye from a Luna Moth wing at Alligator River National Wildlife Refuge

    I had found another set of wings down in the woods last week while cutting some wood. There were also three sets of wings along a short trail at Alligator River National Wildlife Refuge last week. And, ironically, a friend on Facebook just posted some exquisite photos of wings he found in eastern North Carolina. It seems that the adult moths are, indeed, on the wing. And though they are falling prey to many woodland creatures, I am sure enough have secured the future of their kind by laying eggs which will soon hatch to start another generation. I look forward to finding their huge larvae in the next few weeks…another part of the yearly cycle that makes living in North Carolina so incredibly fascinating for those who take the time to walk in the woods.

     

     

  • Moth Majesty

    There are two worlds; the world of sunshine, and the world of the dark. There are whole armies of living things , which, when we go to sleep, begin to awaken; and when we awaken, go to sleep.

    ~W.J. Holland

    It happened again the other night. When I started to close the inside door for the night, there were a few moths clinging to the screen door. Most were small and dark, the LBT’s (little brown things) of the insect world that make mothing so challenging. But one was majestic, royal, magnificent.

    imperial Moth, male, underside
    A male Imperial Moth staring at me through the screen door (click photos to enlarge)

    It was one of the large silk moths, an Imperial Moth, Eacles imperialis. These beauties have wing spans of 4 to 5.5 inches, and are reported to be seen in the south from April to October, although I usually see them in mid- to late summer.

    Imperial Moth, male
    Imperial Moth, male

    Females are larger and more yellow in color than males, so this one’s color pattern, with large blotches of purplish-brown on the upper wings, identified it as a male. Most references say they have but one generation per year, although Bug Guide says there may be two in the south. They overwinter as a pupa underground, emerge, and fly about for a couple of weeks (the adult moths do not feed), mate, and die.

    Imperial egg
    Imperial Moth egg, about to hatch

    Females lay large eggs, singly, or in small groups, on a variety of trees including elm, hickory, oak, sweet gum, and pines. A couple of years ago, I had a large, gravid female, come to a light. I held her overnight in a paper grocery bag where she laid a number of eggs inside the bag. She was released the next morning. I cut out strips of the bag containing eggs and clipped them to several potential host plants in the yard and watched the caterpillars hatch and grow.

    Imperial moth early instar
    Imperial Moth caterpillar, early instar

    Young larvae have prominent spikes which become less pronounced as they molt and grow.

    Imperial eating
    Imperial Moth caterpillars grow to be almost 4 inches in length and can vary in color

    Later instars can range in color from green to brown to orange-ish, and grow to be almost 4 inches in length. They lose the large spikes, but are covered in fine “hairs”. When finished eating and growing, they bury themselves in the soil and pupate, spending the winter underground.

    Imperial Moth, male 1
    Imperial Moth in all its glory

    When they finally emerge, they are one of our most beautiful moths, and bring joy to any who are lucky enough to see them in their brief time in our night sky.

     

     

     

     

     

  • A Beautiful Bug with a Not-so-beautiful Namesake

    What’s in a name? That which we call a rose by any other name would smell as sweet.

    ~William Shakespeare

    Ailanthus Webworm Moth on Joe Pye
    These beautiful day-flying moths were common in the garden this weekend (click photos to enlarge)

    I remember finding this beautiful little moth many years ago when I worked as a naturalist in state parks. When I looked it up in my field guide, I quickly discovered it was a type of Ermine Moth. Most of this group are white with small black spots, much like the winter coat of certain members of the weasel clan. But this one is quite different, looking like it is covered in a flower-patterned shawl. In fact, it is often mistaken for a beetle due to its habit of holding its wings tight against its body. Plus, unlike most moths, it is a daytime visitor to flowering plants. So, for many years, I referred to this as an Ermine Moth.

    Ailanthus Webworm Moth on Joe Pye 1
    Ailanthus Webworm Moth on Joe Pye Weed

    Then, a few years ago, I wanted to use an image of one in a program, and when I looked it up in a newer moth field guide, I found that it has a much less desirable (in my opinion) common name, the Ailanthus Webworm Moth (Atteva aurea). In my early field guide, this moth was native only to south Florida, where its larvae feed on a tree found primarily in Central and South America. But the moth has spread and its larvae switched diets to its new namesake plant, the Tree of Heaven, or Ailanthus altissima. Tree of Heaven is in the same family as the original host plants, but is instead native to northern China. It was introduced to North America in the late 1700’s and has more recently spread across at least thirty states where it is now considered an aggressive pest plant that pushes out many native plants. As the moth adapted to its new host, it was also able to extend its range, and is now found over much of the eastern half of the United States and southern Canada. As the name implies, the larvae feed on Ailanthus leaves in silken webs they spin as a group. Unfortunately, the caterpillars have not proven to be effective in keeping this aggressive tree species in check.

    Ailanthus Webworm Moth on Rosinweed
    Ailanthus Webworm Moth on Rosinweed

    In spite of its unglamorous name and the accompanying negative connotations, I still enjoy seeing this brightly adorned little moth. It can be quite common in late summer and early autumn, especially in fields with masses of goldenrod. The adults feed on nectar and can be seen this time of year slowly crawling along a variety of flowers along with bees, beetles, and a host of other busy pollinators.

     

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