"What a thousand acres of Silphiums looked like when they tickled the bellies of the buffalo is a question never again to be answered, and perhaps not even asked." -Aldo Leopold
Black Skimmer – East End Lagoon Nature Park and Preserve, Galveston TX
Steve and I are a couple of weeks back from a nice few days of birding the Texas Gulf Coast. We were able to visit a number of habitats and locations along the gulf and were mostly able to dodge the rains and flood waters.
Boat-tailed Grackle – Anahuac NWR, TX
Of course, we were able to pick up a good list of lifers as the number of specialists, such as this Boat-tailed Grackle, in this region was quite impressive.
Crested Caracara – East End Lagoon Nature Park and Preserve, Galveston TX
Mostly a bird of the new world tropics, the Crested Caracara is considered to be common in Texas. We were able to find a few.
Roseate Spoonbill – Houston Audubon Society Smith Oaks Bird Sanctuary, TX
The Spoonbills were quite a treat. At the HAS Smith Oaks Bird Sanctuary we were fortunate to visit at a time when the local rookery was in full swing. We observed active nests of not only the Spoonbills, but also of Great Egret, Snowy and Cattle Egret and Common Gallinule.
Seaside Sparrow – Anahuac NWR, TX
The Seaside Sparrow may have been my most exciting find of the trip. I have long wondered about this interesting sparrow that sticks to coastal habitats and sings its interesting song. There are currently nine recognized subspecies of the Seaside Sparrow – this one is likely Ammodramus maritimus fisheri. These birds are among the many that are threatened with destruction of habitat for human coastal development. The Houston metro area is a sprawling web of concrete and Steve and I couldn’t help but notice that natural areas were still being bulldozed and paved.
Tri-colored Heron – San Bernard NWR, TX
The Tri-colored Heron was yet another lifer for both Steve and me. This gorgeous bird was found with a lovely backdrop of wildflowers at San Bernard NWR, one of several locations that we could have gladly wasted a week in.
That is all that I have processed and am prepared to share for now. More to come. -OZB
Black-throated Green Warbler; Tower Grove Park, St. Louis, Missouri
As is often the case, no better description of a bird can be found other than those of Arthur Cleveland Bent. From Life History of American Wood Warblers…
“The northern black-throated green warbler I have always associated with the white pine woods, the delightful fragrance of fallen pine needles carpeting the forest floor and the murmuring of the warm summer breeze. The song has been written as ‘trees, trees, murmuring trees,’ appropriate words that seem to call vividly to mind the pretty little bird in its sylvan haunts and its delicious and soothing voice.”
Trees, Trees, Murmuring Trees – Black-throated Green Warbler; Tower Grove Park, St. Louis, Missouri
As is usually the case, I was only able to get to Tower Grove Park a few times this year in order to witness the songbird migration that rolls through this migrant trap every spring and fall. Thankfully, I was able to be there for a couple good days in terms of numbers and diversity, and was pleased to find this cooperative BGWA singing and foraging through a flowering Black Cherry.
Black-throated Green Warbler; Tower Grove Park, St. Louis, Missouri
I don’t believe the pleasing colors and patterns of this stately bird could be captured in a single better pose than what is pictured above.
Black-throated Green Warbler; Tower Grove Park, St. Louis, Missouri
Beginning in the first few days of April, Ruby-crowned Kinglets move northward through the St. Louis region on their way up to their eventual nesting grounds of the Canadian boreal forests.
Ruby-crowned Kinglet
Moving through our area this early allows for nice opportunities for watching and photography before our deciduous trees have begun leafing out. Although described by Pete Dunne as “A bird that moves like spit on a skillet”, if patient, the nature photographer can find brief periods where even these birds will stop and have a look around.
How on earth did these birds get their name?
When flitting through the branches looking for their insect prey, the intense scarlet-colored crown patch can be difficult to spot. But with camera and patience, this spot that the birds use to aggressively communicate with other Kinglets, can be seen.
The Music Box
The song of the RCKI I find to be quite special. These guys typically start with a couple or three wind-up notes that lead to a wren-like jumble of rapidly progressing complexity. A welcome sound of spring.
See you in the fall…
The Kinglets have mostly removed themselves from the Show-Me State by now. They will return this fall following their nesting season and there will be folks with lenses of all sorts looking to find that ruby-red crown.
On a rainy March day at BK Leach CA Sarah and I came across a couple of young Bald Eagles hanging out. The bird on the left is a 4-year old and his partner is likely a 2nd year bird.
While driving around BK Leach Conservation Area this spring, we came across a Turkey Vulture feeding on a raccoon carcass. Did you know that the Turkey Vulture has the most advanced olfactory system of any known bird? They can pick up the smell of a rotting animal from more than a mile away. As shown below, we noticed the bird would attempt to cover up its meal when it spotted other vultures soaring nearby.
It’s all mine!
Turkey Vultures can often be seen with their wings widely spread in what is referred to as an “horaltic pose”. The benefits of doing this are not entirely known but have been hypothesized to be an aid in warming the birds and helping to dry feathers. The bird posing in the shot below was taken one morning while I was hiking at Shaw Nature Reserve.
Horaltic Poser
Finally, I thought I would share some video footage that this patient bird let us take whilst it was digging into some coon.
The northernmost breeding blackbird of North America, the Rusty Blackbird unfortunately has the distinction of being in one of the steepest population declines of all N.A. bird species.
Rusty Blackbird – Female
Rusty Blackbirds nest throughout the boreal forests of Canada and Alaska, but winters throughout the eastern United States in areas including wet forests near permanent bodies of water. They will also utilize agricultural environments. Among the protected areas considered important for overwintering habitat is Mingo NWR, located in south-eastern MO.
Rusty Blackbird – Male
Rusties exhibit an interesting variability in plumage throughout winter and spring, as can be observed in the different birds photographed in this post. Males are dressed with varying amounts of the rusty warm color that gives this species its name. This coloration is located on the tips of newly emerged feathers during the molt. As these fine feather tips wear and break off, the males will become primarily black and luminescent in summer breeding plumage. Female Rusties are even more interestingly plumaged, with tans, browns and blues.
Rusty Blackbird – Female
Different survey methods, such as the Breeding Bird Survey and Christmas Bird Count all suggest that the Rusty Blackbird population has declined by more than 90% over the past three decades. Reasons for this decline are not well understood, but are likely to include the acidification of wetlands, loss of wetland habitat in general, loss of forested wetland habitat on wintering grounds and poisoning of mixed-species wintering blackbird flocks in south-eastern United States, where they are considered as agricultural pests.
Rusty Blackbird – Male
In his book Birder’s Conservation Handbook – 100 North American Birds at Risk, where much of the information in this post was collected, Jeffry Wells suggests the following actions to address the population decline of the Rusty Blackbird:
Limit global warming pollution and acid deposition via air pollution.
Implement protections and management plans across the boreal forest of North America.
Stop deforestation of wintering habitat and implement habitat restoration.
I was thrilled when I took my camera inside from shooting in my wildflower garden on a past summer day and identified this hymenopteran as a Bee Wolf. Philanthus gibbosus (Family Crabonidae) is what I am calling this one. Bee Wolves get their name from doing what you expect, feeding primarily on bees. These solitary wasps will load their brood chambers with pretty much any bee or wasp smaller than themselves that they can catch as a provision for a single egg they deposit prior to sealing the chamber shut. Some taxa have specific bees they prefer to catch and this can aid in identification. This poor thing was quite beaten up as you can see in the photograph below. Missing a few legs, it probably escaped a bird or larger insect, and was not happy to have me and my camera in its face. In the photo above I captured it doing a rapid vibration of its wings, something I read that these guys are known for doing as a communication. I can’t imagine what she may have been trying to tell me…
Bee Wolf
I believe the insect below to also be a species of Bee Wolf, but have not yet been able to put a name with this one. I photographed this one having a drink in a wet area of Shaw Nature Reserve early one morning.
The False Milkweed Bug (Lygaeus turcicus) is a seed bug that, although quite similar in appearance to the Small Milkweed Bug (Lygaeus kalmii), is not strongly associated with milkweed.
False Milkweed Bug
As can be seen in the photograph above, the False Milkweed Bug is most often found feeding on yellow composites (Family Asteraceae). These bugs were all photographed at Shaw Nature Reserve on what seems to be this insect species’ favorite food plant, the False Sunflower (Heliopsis helianthoides).
False Milkweed Bug
There are several members of the Lygaeidae family that are aposematically colored and found in North American prairies. As mentioned, it seems that the False Milkweed Bug does not typically utilize milkweeds. The Small Milkweed Bug feeds on milkweeds as well as other plant taxa. The Large Milkweed Bug feeds exclusively on milkweed. There is obviously a great case of Mullerian mimicry (distasteful organisms appearing similar to one another to benefit from a an easily identified color or body type) going on here, but it gets pretty complicated.
What has happened to the False Milkweed Bug? Is this a case of a species that once fed primarily on milkweed and developed aposematic coloration but has since switched food preference? Or, is this a case of a palatable species mimicking (Batesian mimicry this time) the aposematic coloration of a truly noxious species? Thinking about this, it is easy to see the selective advantages that could result from either possibility.
First, a little background…
Some insects that feed on milkweed benefit by concentrating chemicals called cardiac glycosides that are toxic irritants to vertebrate predators. Cardiac glycosides are an irritant to vertebrate herbivores (livestock) and vertebrates that feed on insects that feed on milkweed and store these compounds in their tissues. However, they are not a significant problem for insects that feed on milkweeds – they simply pass through their guts (insects that store these specific toxins, for example the monarch, must have biochemical changes to avoid toxic effects). The milkweed’s primary defense against the seed bugs and other herbivorous insects is the milky sap that gets forcefully pumped from any mechanical damage that is inflicted on the plant. For this reason the milkweed is a pain for an insect to feed on.
For a seed bug, with its piercing-sucking mouth parts, feeding on the gummy sap of a milkweed is a significant hurdle. Assuming the False Milkweed Bug once fed from milkweed primarily and gave it up would be a significant advantage. Keeping the aposematic coloration, which would allow it to gain the benefit from its vile-tasting, similarly colored cousins, still feeding on milkweed, would be advantageous as well. With my brief observations, the False Milkweed Bug still behaves conspicuously – feeding and doing everything else it does out in the open, suggesting that the aposematic coloration is still working in this mimic-model system, whatever the source history ultimately may be.
I’m finally ready to share a few more images from a float down the upper third or so of the Current River that Steve and I had the great fortune to experience this past October. We started at navigable mile 8.0 at Cedar Grove Access and pulled out three days later at mile 51, the confluence of the Current and that other, oh-so desirable, Ozark stream – the Jacks Fork. If one floats slow and quiet, the opportunity to see wildlife is very high in this National Park (Ozark National Scenic Riverways N.P.). I’v shared a couple of images of these guys previously. I believe we found 8-9 Mink during the first day of this float. It was enjoyable watching them busily hunt along the stream banks, mostly oblivious to our presence. As usual, Steve did a great job in keeping us quiet and pointed in the optimal direction for capturing some images.
American Mink
It was quite a challenge to keep up with these guys as they fished. This one below had caught a nice-sized crayfish and barely slowed to stop and enjoy his snack.
Ozark Lobster!
Here is a photo of one investigating the water prior to dipping back in.
Testing the Water
Not only does a float down the Current allow for great observations of wildlife, but many geological features are most easily seen by being on the river as well. Cave Spring can now be accessed via a nice newer trail, but it is much nicer accessing it by boat. The endpoint of a vast and interesting karst drainage system, Cave Spring rises from the back of a short cave. At the rear of this cave one can guide a boat over the vertical conduit of the spring, which is ~155 feet deep! What an eerie sensation it is to shine your light down and still see no more than a fraction of the length of the conduit shaft. In the image below, I am on a dry exposed shelf adjacent to the spring’s outlet and Steve is guiding the canoe towards the river.
Cave Spring
Pultite is a spring found on this upper stretch of the Current River that is surrounded on all sides except the river by private property. This means that one must boat or wade/swim to visit it. At only ~ 1/10 the output of Big Spring, Pultite is still quite a good-sized spring with and average daily output of ~ 25 million gallons. The effluent channel on this one is quite attractive and I hope to visit more often.
Pultite Channel
If day one was for the Mink, day two was our River Otter day. We had no Mink, but 5 or 6 of these large weasels were spotted.
North American River Otter
Not to forget the birds! These days, a trip to nearly any permanent Missouri water source will likely bring an encounter with a Bald Eagle. Observing these guys in the Ozarks will never get old to me.
Bald Eagle
Another constant companion on these floats are the Fish Crows, here pictured finishing up a little Ozark lobster.
Fish Crow
We were fortunate in having mostly clear and dry skies on this trip, which allowed us to throw our bags directly on whatever gravel bar that struck our fancy and sleep directly underneath the stars. A morning fire was necessary – not only to burn the dew off of our sleeping bags, but of course, for the river-water French-press coffee. Dark skies on these streams afford great opportunities for astrophotography. My only wish for this trip is that I was a little more tolerant of the cold, tiredness and laziness that limited my patience for getting better nightscape images… 😉
Nightscape on the Upper Current
I will be posting more images of this trip on my Flickr account in the near future. Thanks for visiting and I hope to post again in the near future.
Steve and I took advantage of a long holiday break by making a pilgrimage to Squaw Creek NWR. Even though the temps were in the 50s and 60s, you can see we still had white out conditions… 😉
A Thousand Acres of Silphiums 