Articles

A bird with a built-in comb!! Pectinate Toe on a Common Nighthawk

The things you learn when you are looking through your photos!! I’ve spent so many hours over the last 2 months trying to catch up on processing old photos. It’s a task I thought I’d never catch up on in this lifetime, given I had photos going back…years. But I can now see the light at the end of the tunnel! Last night I was processing photos from a trip to the Black Hills of South Dakota when I got to a series of Common Nighthawk photos I took at Wind Cave National Park.

Common Nighthawks had been something of a photographic nemesis for me. I see them in flight all the time, but have you tried to photograph a nighthawk in flight?!?! Yikes…they don’t fly straight! They do often perch during the day, but in my part of South Dakota, that’s typically in a tree, where they blend right in. However, out west, they might perch on a rock, a fence post, or…a barbed wire fence. Last June, late in the evening, I saw several Common Nighthawks flying around, and I tried in vain to photograph them. However, when I gave up and started driving I came across a Common Nighthawk perched on a barbed wire fence.

Common Nighthawk (Chordeiles minor) perched on a barbed wire fence.
Common Nighthawk just hanging out on a barbed wire fence. Finally! Good photos of a photographic nemesis bird for me!! From Wind Cave National Park, South Dakota June 27th, 2020

I spent probably 30 minutes watching that one bird! What a treat! FINALLY some good photos of a Common Nighthawk, not only of a bird at rest, but a bird opening that massive mouth and calling several times! I did post a few quick photos on social media, but then forgot about them for 9 months…until last night. When looking through the photos, something really stood out on a few of them. What was wrong with one of the bird’s toes!?!? I’d never seen anything like it:

Pectinate toe on a Common Nighthawk (Chordeiles minor)
The left middle toe of the Common Nighthawk…it’s a comb! A built-in comb on its foot!

I started poking around and quickly found out it’s called a “pectinate” toe, which is thought to function as a grooming device. Evidently there are a few types of birds that have this feature, including not only “goatsucker” species like the Common Nighthawk, but also Herons and Egrets. On some species they’re found on both feet, but in some species, like this Common Nighthawk, they’re only found on one foot.

Makes me wonder…are they all “left footed”? Are there are “right-footed” birds in terms of their combs? I haven’t been able to find that answer, but I did find this blog that does indeed attempt to show that yes, the birds can and do use that toe to tend to their plumage.

Very cool!! But the question is…HOW cool!?!? Which has the greater “cool” factor? A Common Nighthawk with it’s own built-in comb on it’s toe? Or the millions of US kids who grew up in the 80s, with the standard and oh-so-necessary comb sticking out of their back blue jeans pocket?

Comb in jeans pocket (1980s)
Inquiring minds want to know!! Who wears it “cooler”!?!? The Common Nighthawk with it’s built-in comb toe??? Or us cool, giant-haired kids of the 80s with our colorful combs in our jeans pocket!??!?
Common Nighthawk calling - Chordeiles minor
Question answered! I got a lot of “squawk back” when implying we 80s kids were cooler. The question is now settled…



Who says blackbirds are boring?

It’s been a busy weekend catching up on projects around the house, but I did take advantage of the cool, crisp morning to get out and bird. It wasn’t a great morning. I did come across some migrant warblers, including Canada and Black-throated Green, two I don’t see all that often, but overall it was pretty slow. One thing you do see this time of year though are mixed flocks of blackbirds gathering, and I came across several on the way home. I do sometimes stop to scan them for “goodies” like Rusty Blackbirds, but alas, no Rusty’s this morning.

However, I did stop and watch the biggest flock for a while, and grabbed the camera. Like many birders and bird photographers, I tend to take certain birds for granted, but there really are some beautiful plumage patterns on fall blackbirds here. The flock was primarily Common Grackles, but there were a number of Red-winged Blackbirds, Yellow-headed Blackbirds, and European Starlings mixed in.

By the time I got home, I considered the morning a disappointment, as I didn’t think I really got any really nice photos. Once I started downloading and processing photos, though, my attitude changed. These birds aren’t exactly the poster-child for “coveted” birds for birders (or photographers), but there are certainly some gorgeous colors and patterns on these birds. The fall plumage of a young Red-winged Blackbird, and the non-breeding plumage of a European Starling, are both wonderful in terms of the intricate patterns. Blackbirds, boring?  I think I may have changed my tune after this morning.

European Starling - Sturnus vulgaris

Non-breeding plumage European Starling. Probably one of the least-liked birds in North America, given their non-native status and tendency to compete for nesting sites with native birds. But after being here for nearly 140 years…they’re established. They’re not going anywhere. They’re “ours”. And damn it, they are DARNED attractive birds.

Common Grackle - Quiscalus quiscula

Common Grackles ARE native…but for those of us who feed birds in our yards, they may have a worse reputation than European Starlings. They’re pigs! They drive away other birds! In my yard, I’ve seen them kill and consume young fledglings. But…that iridescence, those colors…they are striking birds in the right light.

Red-winged Blackbird - Agelaius phoeniceus

Red-winged Blackbirds may be the most common bird in the state in the summer. I do like the plumage of the young birds, with this young male starting to show a bit of what will be his trademark red shoulder patch.

 

POTD – Costa’s Hummingbird with splash of pollen

Today I worked out in the back yard. All. Day. Long.  I’m beat, but got a lot done, and it was a nice day. A bonus…it was nice seeing all the birds coming to my feeders, including a still very active hummingbird feeder.

This is my yearly, gloomy post, focusing on the fact that my hummingbirds are about to leave me for, oh…8 months. The males already are slipping away, as most of the birds I now get are females and young. I have about 4 more weeks before they all disappear.

But this year shall be different! I refuse to go 8 months without seeing a hummingbird!  We are taking a family vacation this winter to Arizona, and while it’s not exactly prime hummingbird season in either variety or number, there are still plenty of hummingbirds around at that time of year. Today’s POTD is a Costa’s Hummingbird who obviously had just fed, from Madera Canyon in Arizona in November 2011.

Costa's Hummingbird - Calypte costae

In The News – Week of December 11th

Science, nature, environment, and related news from the week of December 11th…

U.S. Department of Energy

Not a great time for DOE officials (or other government agencies dealing with climate change). First they’re asked to turn over the names of all employees who work on climate change issues, and then they are given a new department head in Rick Perry who once stated the department should be eliminated.

Department of Energy says Fuck You to Trump — In a rather chilling story from last week, it was revealed that the Trump transition team sent a questionnaire to Department of Energy officials, asking them to provide a list of all Federal employees or contractors who attended United Nation’s meetings on climate change, or had attended meetings or worked on studies that relate to the social and economic costs of climate change mitigation.  This week, the Department of Energy refused to comply, stating “Our career workforce, including our contractors and employees at our labs, comprise the backbone of DOE (Department of Energy) and the important work our department does to benefit the American people. We are going to respect the professional and scientific integrity and independence of our employees at our labs and across our department.” We have an Exxon Mobil exec slated for Secretary of State.  We have Rick Perry slated for head of DOE, an agency he once vowed to eradicate.  We have a proposed head of EPA that is an avowed climate change denier.  We have a proposed head of Department of Interior that also is a climate change denier.  And with this DOE request, we have evidence that the Trump administration will actively discriminate against climate science in the Federal government, and those who do climate change work.  There’s plenty of evidence of the new administration’s inability to live in the same facts-based world as the rest of us, but the position being firmed up on climate change is especially frightening.

Rex Tillerson, Exxon CEO, proposed for Secretary of State — And in an obviously related story, Trump formally announced his intention to nominate Rex Tillerson, CEO of Exxon Mobil, as Secretary of State.  An oil executive, with no government experience, picked to play the key role in international relations.  What could go wrong? This New York Times piece notes that Exxon has an immense stake in our diplomatic relationship with Russia, with literally billions of dollars at stake should economic sanctions against Russia be lifted or revised.  As noted from the previous story, from an environmental standpoint, the entire suite of proposed administration officials is a complete disaster for the environmental, including stated desires to move away from clean energy towards the old days of oil, gas, and coal.  Nothing exemplifies the forthcoming disaster more than the Tillerson pick.

Dinosaur Tail in Amber

A portion of a feathered dinosaur tail, found perfectly preserved in amber. Bits of feathers have been found in amber before, but what makes this find extraordinary is the presence of 8 complete vertebrate and perfectly preserved connection structures, enabling scientists to state beyond any doubt that the tail comes from a sparrow-sized dinosaur.

Human beings hard-wired to believe blowhards — Recent research has shown that people base their belief system on personal experience, but also place a heavy emphasis on the beliefs of “confident” people that they come into contact with.  As the story notes, people’s beliefs can be swayed by those displaying confidence in their own beliefs and opinions, even in the face of contradictory evidence.  In a world where “fake news” arguably became the biggest meme of 2016, clearly this study is on the mark.  Nowadays, it’s not what you say or whether it’s true, it’s how you say it.

Feathered dinosaur tail found preserved in amber — OK, enough of the depressing news from the week.  Scientists in China have made an incredible find, with a beautifully feathered tail from a pint-sized dinosaur found perfectly preserved in amber.  The tail section is small, less than 2 inches long, but contains 8 perfectly preserved vertebrate.  Based on the vertebrate and other structures in the tail, scientists can definitively attribute the tail section as a portion of a small dinosaur the size of a sparrow. The find has also been a boon for trying to understand the evolution of feathers themselves, as there are characteristics of the feathers that are very different from those in modern birds.

“Winds of sapphires and rubies” found on exoplanet — The story itself is very interesting.  For the first time, scientists have been able to find evidence of active weather systems on a planet outside of our solar system.  Gas giant “HAT-P-7b” (a catch name) was found to have extremely strong wind patterns, an effect that was observable due to shifting patterns of monitored light from the planet. Interesting story, but the headline that was chosen reinforces a major pet peeve of mine…trying to sensationalize science. No, the winds of the planet are filled with sapphires and rubies, as the title suggest.  The atmosphere is likely made of corundum, a mineral that is found in sapphires and rubies.  I understand the desire to capture the attention of a reader, particularly given that people generally have the attention span of your typical 2-year old.  But it’s enough that the mainstream media constantly sensationalizes stories (or focuses on sensationalist material).  We don’t need that kind of mindset in the sciences.

Icefields Parkway - Alberta, Canada

Athabaska Glacier and the Columbia Icefields, in Alberta, Canada. We were there this summer, and in the 15 years from our last visit, the glacier has obviously receded quite a bit. Scientists this week “confirmed” such events are due to climate change. Duh…

Climate changes causes melting glaciers — Scientists looked at 37 glaciers and for all but 1 of them, stated that there’s at least a 90% chance that their decline was due to climate change.  Well, duh.  I need to write this kind of paper, something that restates the obvious but is sure to gather a lot of acclaim and attention.

Reindeer declining due to climate change, human activity — An extremely well-studied group of Reindeer in Russia have suffered dramatic declines of 40% in the last 15 years.Part of the problem is industrial activity within their range, which has led to changes in the migration patterns, but another issue is undoubtedly climate change.  Warming temperatures can drastically alter the environment, but can also have other unforeseen impacts. As shown in another study on caribou in North America, warming temperatures have changed the phenology (seasonality) of Arctic regions.  Melting occurs much earlier in the spring, and open water exists for much longer periods of time compared to several decades ago.  Mosquito populations have boomed as a result, to such an extent that they are having a very detrimental impact on reindeer and caribou populations. Thank goodness though we have a new incoming administration that will categorically state that climate change isn’t real and isn’t affecting anything.  That should solve the problem.

Loligo_vulgaris

“Loligo vulgaris”, a European squid that is become much more common in waters of the North Sea. The “vulgaris” part sounds about right to me, because although I enjoy calamari, the idea of replacing tasty cod in fish-and-chips with this just seems a bit “vulgar” to me.

Do you want squid with those chips? — Alright, THIS is too much. Melting glaciers?  Whatever.  Reindeer and caribou disappearing?  Meh.  But when climate change starts to impact one of my favorite meals, fish-and-chips, THEN something has to be done!!  In the 1980s, squid were caught in 20% of surveys in the North Sea around Great Britain.  Now, squid are caught in 60% of surveys and numbers continue to increase.  As waters warm, not only are squid being found more often, but warmer water fish such as anchovies and sardines, are increasing.  The center of productivity of a fish-and-chips stable fish…cod…has continued to move north.  As the climate warms and squid become more common, you might have to replace that tasty breaded cod with some squid in your next “fish”-and-chips order.

Distracted while talking — What the hell, I’ll bring up another pet peeve of mine…cell phones and cars. I do wonder just how many accidents are directly related to distracted drivers, given how often you come across drivers weaving all over the road, people driving 15 mph below the speed limit and not even realizing it because they’re on the phone, people who sit there when the light turns green, etc.  As this new study points out, it’s not the fact that you’re using your hands that makes distracted driving such as this dangerous. Just conversing with hands-free equipment greatly reduces a driver’s perception and awareness of their surroundings.

AC/DC Logo

I can multitask! Air guitar while listening to Back in Black is perfectly compatible with simultaneously playing a board game.

Looking to put men in their place this Christmas?  Try some AC/DC!!! — We had family up for Thanksgiving, and one of the most enjoyable aspects was playing UNO and other games for much of the day.  Playing board or card games is something that many do over the holidays, and this study found a way for women to potentially dominate their male counterparts this Christmas.  Men were much more likely to make mistakes in playing board games while listening to music than were females.  The study noted that classical music had little effect on men, but playing something like AC/DC significantly decreased their performance. Interesting study, but I must take offense at the phrase of men being “forced to listen to AC/DC”. No one “forces” you to listen to AC/DC!  If I want play Sorry or Life or Clue or UNO this Christmas, well damn it, I also reserve the right to jam out to “Hells Bells” or “Back In Black” or “Thunderstruck” while I play!  Hmmm…maybe they’re onto something with this story…it is hard to play board games and do justice with my air guitar at the same time…

Pictures! Of things with “feathers”!!

Nelson's Sparrow - Ammodramus nelsoni

A Nelson’s Sparrow, one of the rather elusive “skulkers” that moves through the area in the fall.

For a website that started out as a place to share my bird photos, it sure seems like it’s been a long time since I’ve actually posted any bird photos.  Snakes?  Check!  Insects? Check?  Even an aurora? Check!!  But photos of creatures with feathers haven’t been very prominent lately.

It’s not like I haven’t been out birding.  Since late May, I haven’t birded as much as I would over a normal summer, but I have been out on occasion.  I truly haven’t had much luck getting good photos though.  Part of the issue is 1) my reluctance to shoot (yet more) photos of species that I already have many photographs, and 2) a higher standard for what constitutes a “keeper” photo.  In bird photography, it’s inevitable that you’ll toss most of your photos (dang things don’t sit still and pose for a nice picture!), but I toss more photos now than I ever have.

Red-tailed Hawk - Buteo jamaicensis

A Red-tailed Hawk, busy feeding on grasshoppers. This guy was gorging, looking down from this fence post, dropping down to grab the sluggish fall grasshoppers, coming back to the post to consume it, and then looking for another.

I spent time birding and taking photos the last couple of days, with the intention of actually getting photos “good enough” to put on my website.  Mission accomplished!  I really love birding in the fall.  While May is a magical month for warblers and other migrants that move through, October is a month for sparrows!  Sparrows aren’t exactly high on the “must see” list for most people (even many birders), but there’s a wonderful variety that moves through in the fall.  Despite the tendency for most people to think of sparrows as rather drab birds, there are also several with truly beautiful plumage.

One of the highlights in the fall for me are finding Le Conte’s and Nelson’s Sparrows.  Neither breed in my part of the state, and I never seem to be able to find them when they move north through the area in the spring.  However, I have multiple locations where I’ve had great luck finding them in the fall, particularly Le Conte’s Sparrows.  The species is highly sought by many birders, having a reputation of being “skulky” and difficult to find.  They definitely do stick to thick vegetation, usually in thick wet meadows or along the edges of wetlands, but with patience, you’ll usually get some good looks of them as they forage and go about their business in the fall.

Savannah Sparrow - Passerculus sandwichensis

One of the more common sparrows moving through in the fall, a Savannah Sparrow. You often see loose collections of a few dozen birds at this time of year.

Raptors can also be fun in the fall, typically not so much for variety of species in this part of the state (southeastern South Dakota), but in terms of sheer number.  You tend to see concentrations of American Kestrels, Red-tailed Hawks, and a handful of others as they move through in the fall.  It also tends to be a pretty good time for photographing them, as many are first year birds that tend to not be as spooky as older birds.

Note although it’s likely too early, I spent some time this weekend bushwhacking through cedar thickets, looking for early arrival Northern Saw-whet Owls.  No luck!  But I am looking forward to their arrival.   One of the few bright spots of a chilly South Dakota winter!

As always, click on the images for larger views.

 

 

Cooper's Hawk - Accipiter cooperiiHarris's Sparrow - Zonotrichia querulaMarsh Wren - Cistothorus palustris

New Macro Photo Page

Feather - Birds have these

A tiny feather I saw stuck on a tree branch this morning. I hear “birds” have feathers. Might want to try photographing one someday. It’s kind of telling the mode I’m in right now, when I got out with a goal of actually shooting birds, yet in my macro-mania, I instead come back with a macro photo of a bird feather.

I went out with my 400mm lens today.  Truly, truly I did.  Truly, truly I meant to photograph a bird, and break free of my recent macro obsession.

In fact, I DID take a photo of a bird.  A small Empidonax flycatcher of undetermined species.  There aren’t many bird species I can’t immediately ID by sight, but these guys are.  I thought it was kind of fitting that while I’m in my bird photo rut, the one nice bird photo I got today was of the one group of birds I have a hard time ID’ing.

I did get a lot more macro photos though!  I’m rapidly filling up my hard drive with unprocessed macro photos. They now sit there alongside all my bezillion bird photos that sit on my hard drive, longing for the day when they’ll see the light of day.  To facilitate the processing of the macro photos though, I did finally set up an official macro photo page on my main website.  You can access it here:

 

Macro Photo Gallery

 

%d bloggers like this: