citizen science

ID Bracelets: For the Birds?

What gets measured, gets managed. —Peter Drucker

Banded Male White-tailed Ptarmigan in Breeding Plumage, Trail at Medicine Bow Curve, Rocky Mountain National Park, CO. Canon EOS 7D/500mm f/4L IS. Natural light.
Banded Male White-tailed Ptarmigan in Breeding Plumage, Trail at Medicine Bow Curve, Rocky Mountain National Park, Colorado. Canon EOS 7D/500mm f/4L IS. Natural light.

Do the leg bands on my subjects ruin the shots for you? Me, I’m on the fence. Generally, Chris and I like to capture an idealized view of nature. We travel to state and national parks, wildlife refuges and nature preserves. We try to avoid shots that include fences, telephone poles, signs and roads. We like our birds au natural.

Nature provides a necessary respite from the human hustle—an escape from the man-made. Perhaps its true for you, too. Alas, the escape is an illusion. Even if we agree that humans are not the center of life on earth, we can’t deny that our influence is all but ubiquitous. How I crave those vistas without a trace of mankind—hard to find when you live in a metropolis. But, peering at the world through a camera lens takes me there. I suspend disbelief with a world view framed by the viewfinder and the silent still images that result.

So, when your subject sports a leg band, it kinda bursts the bubble.

Brown-capped Rosy-Finch, Sandia Crest, New Mexico
Banded Brown-capped Rosy-Finch, Sandia Crest, New Mexico. Canon EOS 7D/500mm f/4L IS (+1.4x TC). Natural light.

Many agencies and organizations use bird leg bands for tracking purposes. For example, U.S. federal agency bands are for birds covered by the Migratory Bird Treaty Act, and state and provincial bands are for game birds (Galliformes). These banding programs are the reason we know what we know about the timing and scale of migration. Some agency programs, such as the North American MAPS (Monitoring Avian Productivity and Survivorship) Program, also produce data on the abundance, survivorship, and ecology of our continental land birds so the conservation community can better address conservation needs.

Banded Female Mountain Bluebird, "The Tree," Upper Beaver Meadows, Rocky Mountain National Park, Colorado
Banded Female Mountain Bluebird, “The Tree,” Upper Beaver Meadows, Rocky Mountain National Park, Colorado. Canon EOS 7D/600mm f/4L IS (+1.4x TC). Natural light.

Chris and I sometimes romanticize the idea of time-traveling to the Pleistocene Epoch and experiencing the world at the dawn of man—before we altered the environment so discriminately in our favor. But here we are, in the Anthropocene, deeply intertwined with so many of our fellow species. And, unlike our fellow species, we know what we do. Conservation science through bird banding places our best foot forward to mitigate some of the damage, or at least learn how to considerately coexist.

So, putting aside all fantasies of a better past, I am compelled to celebrate these unwitting research subjects. They carry a burden for their well being—and so must we.

Banded Female Wilson's Plover, East Beach, Galveston Island, Texas
Banded Female Wilson’s Plover, East Beach, Galveston Island, Texas. Canon EOS 7DII/600mm f/4L IS (+1.4x TC). Natural light.

©2017 Elisa D. Lewis and Christopher R. Cunningham. All rights reserved. No text or images may be duplicated or distributed without permission.

Pelican Pouches and the Power of Citizen Science

Eastern Brown Pelican with red throat pouch at Offatts Bayou, Galveston Island, Texas.
A Brown Pelican with a red throat pouch glides past the shore at Offatts Bayou, Galveston Island, Texas on February 3, 2013. Many references suggest that Brown Pelicans with red throat pouches only occur along the Pacific Coast. Field observations suggest otherwise!

While we were watching the loons at Offats Bayou in early February, a Brown Pelican paddled through my viewfinder. Odd, I thought — red pouch. After much hopeful discussion and reference checking we were excited to think that we had a California Brown Pelican visiting our patch of the Texas Gulf Coast. There are five subspecies of Brown Pelican — the California, Caribbean, Eastern (ours), Galapagos, and Ecuador Brown Pelicans. The gular pouch of the Eastern Brown Pelican (Pelicanus occidentals carolinensis) is most often described as dark gray or blackish, whereas in the California Brown Pelican (Pelicanus occidentals californicus) the pouch is a distinctive red and olive. The difference has been used to distinguish the two subspecies.

Eastern Brown Pelican with black gular pouch
Adult Eastern Brown Pelican with the typical black gular pouch seen in early spring along the Gulf Coast.

As is often the case, things aren’t always as they seem (I love it when this happens!). Upon further investigation, I stumbled upon a post in Sibley Guides online which explains that red pouches seem to also be a part of the Eastern Brown Pelican gene pool based on field observations. The post includes speculation on whether these genes were introduced during Brown Pelican reintroduction in the 70’s or whether it’s really a matter of natural gene flow. Perhaps it’s a little from column A and a little from column B. The observation poses a bunch of new questions to investigate!

Strangely enough this topic was just mentioned on ABA Birding News this past Thursday. A birder/photographer documented a banded Brown Pelican with a red pouch and the band code indicated it was banded as a flightless juvenile in Louisiana — photographic proof that we can no longer use pouch color alone to differentiate Pacific vs. Atlantic subspecies! It seems our “visitor” is most likely a Texan after all.

It is worth noting that this “pelican brief” was brought to you by citizen science and the power of the internet to access and share data. Enthusiasts and amateur scientists interested in birds and their ecology contribute to ornithology in meaningful ways. Opportunities are out there for birders of all ages. You can participate nationally with  Cornell All About Birds Citizen Science projectsAudubon Citizen Science, or eBird – the amazing biodiversity data resource powered by amateur and professional bird watchers alike launched by the Cornell Lab of Ornithology and National Audubon Society in 2002.

Go exploring!

 © 2013 Elisa D. Lewis. All rights reserved. No text or images may be duplicated or distributed without permission.