Contents tagged with ornithology
Created: 5/13/2015 Updated: 8/1/2016
It’s Christmas at the Nature Museum today. Or at least that’s what it seems like with all of the colorful ornaments adorning the trees around the building. These ornaments are actually migratory birds though, arriving to celebrate spring. Blue-winged and yellow warblers, red-winged blackbirds and redstarts, gold finches in their breeding finery, and blue-grey gnatcatchers seem to be flitting from every bough. Veery and wood thrush provide holiday songs, while kingfishers lay down the beat. Even the catbird, while not as melodious as some, contributes soft mews that spice the soundscape, too.
For many of these species, Chicago is the last layover on a transcontinental flight from winter home to breeding grounds. For others, this is their final stop; they will spend the summer eating bugs and weed seeds in our neighborhoods. Such a migration is one of the amazing phenomena of life. For example, the blackpoll warbler may fly for 1,500 miles in one hop, often over open ocean. Though some will pause at North Pond after they leave Brazil, Blackpolls only finish their seasonal travel when they are near the arctic, where the trees and the bugs are perfect for nesting and feeding protein-hungry young.
Though I’ve spent my share of time in airports and flying over the ocean, migration remains an abstract concept to me. My own personal peregrinations rely on fossil fuels and technology, punctuated by stops at greasy spoons and historical monuments. In contrast, birds cross continents using their own metabolic power. They spend a few frenetic weeks foraging on every high calorie insect they can find, sometimes doubling their summer weight. Then, when the weather is right and the moon is full they launch themselves into the void and fly.
I’ve hiked a lot at night in the desert and sat in the shade all day-- which might be comparable to some of the weakest migrators-- but imagine walking day and night, in weather foul and fair. Such a trek is almost inconceivable for me, yet many birds do it every spring and autumn for their whole lives. More concrete to me than migration is the physical presence of a bird. All winter I enjoy the blue jays, chickadees, and house sparrows that live in my neighborhood. Then, suddenly one morning I see a flash of red that is somehow more intense than a cardinal, faster than a flicker, and more skulking than a nuthatch—a scarlet tanager! This bird flew from the foothills of the Andes, crossed the Panama canal, probably spent a day or two in the Yucatan then bee-lined across the gulf of Mexico, Louisiana, Arkansas, and Missouri only to pause in a tree outside my window, pluck a bug from the branch, and disappear into the leaves.
Scarlet Tanager (CheepShot via CC BY 2.0)
It’s easy to have a feeling of ownership towards the birds that live near us. When a robin builds its nest above the back door, it’s “your” bird. Did the baby’s hatch? Did they fledge? Maybe you even left some worms on the sidewalk to supplement the meals. Doubtless you would close the door softly or even stop using the door altogether during incubation. And what would you do if a cat began stalking “your” robin?
In the same way that the robin is “yours,” so is the scarlet tanager. Cats will kill it and pesticides will starve it just as surely as they will the local robin. However, that scarlet tanager lives in many people’s backyards during the year. All it takes is one loose cat in Costa Rica, one field sprayed for bugs in Honduras, one windmill in Texas, or one well lit building in Chicago to kill that tanager before it gets to your back yard. If migratory birds belong to anyone, they belong to all of us. Our stewardship of the environment today matters for both the bird and for our brothers and sisters around the world everyday.
While it may not actually be Christmas at the Nature Museum today, it is a season of celebration of life and of the parts of life that we all share.
Created: 2/16/2015 Updated: 8/2/2016
If you're familiar with the Chicago Academy Sciences and our history, then chances are good that you've heard the name Alfred M. Bailey before. For just shy of a decade, Bailey was Director of the Academy, and added some invaluable specimens to our ornithology collection...but who exactly was he?
Edward Ford, Alfred M. Bailey and William I. Lyon
Chicago Academy of Sciences Archive, Photography Collection.
Alfred Marshall Bailey was born on this day in 1894 in Iowa City, Iowa. He graduated from the University of Iowa in 1916, and as an undergrad worked in a government-sponsored expedition to the Hawaiian Island of Laysan. From here, he quickly became involved in the world of museums. From 1916 to 1919 he worked as the curator of birds and mammals at the Louisiana State Museum, and from 1921 to 1926 he worked at the Denver Museum of Natural History, before making the move to the Midwest.
In 1926, Bailey came to Chicago to join the Field Museum, but after a year, he made the move to the Chicago Academy of Sciences where he was appointed Director of the Academy. During the nine years he spent as Director, Bailey continued to focus on ornithology, organizing trips back to Louisiana to capture still and motion photography of migrating birds. He also organized trips to Alaska and, working with collectors there, collected birds and bird eggs. This culminated in the publication of the Academy’s Program of Activities “Birds of the Region of Point Barrow, Alaska” in 1933.
Alfred M. Bailey (with camera) filming birds in Louisiana.
Chicago Academy of Sciences Archive, Photography Collection.
When Bailey resigned from the Academy, he returned to the Denver Museum of Natural History where he was appointed Director, a position he held until 1969. He remained involved with the Denver Museum until his death in 1978.
In his obituary for Bailey, Allan R. Phillips detailed that Bailey’s credo was “fieldwork is the lifeblood of natural history museums and he himself was a leading fieldman.” This extensive fieldwork not only produced Academy publications, it also resulted in some prized pieces of our ornithology collection. Some of the specimens in our collection were collected as part of Bailey’s work to document avian diversity in his book Birds of Arctic Alaska. In addition to those specimens, we also have a large number of Bailey’s photographs in our archives that were taken during his trips across the United States and Canada. To see some of them, check out this blog post.
To learn more about Bailey’s life and work, check out these resources:View Comments
Created: 9/2/2014 Updated: 8/9/2016
September 1st marked the 100th anniversary of the death of Martha, the last passenger pigeon. To mark this somber occasion, and to help prevent another such extinction from occurring, Senior Curator of Urban Ecology Steve Sullivan has written this eulogy for this beautiful bird.
Imagine a bird shaped a bit like a mourning dove but much larger, with slate blue on its back, salmon pink on its breast, and an opalescent necklace of green and pink. This bird lived in flocks so large they would darken the sky, sometimes for three days, as they passed overhead. Their wing beats were strong enough to cool the air and loud enough to frighten horses. People could kill 1,200 of these birds before breakfast.
This bird was the passenger pigeon. An endemic North American species—one found nowhere else. Larger than the carrier pigeon, also known as the homing or messenger pigeon, that domesticated bird brought by the earliest colonists of our continent. Though this non-native bird was also prized for its meat, the passenger pigeon was free for the taking and better tasting.
Today, the non-native carrier pigeon loafs in the rafters of the subway and poops on statues in the park of cities around the world. The passenger pigeon, whose population was included billions of individuals, is gone. Extinct. We ate them all and left just a few skins to be studies in museum collections around the world.
Today, we continue to consume. Everything we have ever touched and nearly everything we’ve ever even seen was grown from the earth or dug out of it. When we buy a product, a hole is created in the earth on our behalf. What will we fill that hole back up with? Something that can re-enter the ecological cycle and preserve choice and freedom and health for future generations? Or will we leave a dirty, toxic earth where one place looks essentially like every other place?
The story of the PP continues today, from the once abundant monarch butterflies and little brown bats of American neighborhoods, to animals that live half a world away but are impacted by our purchasing decisions. Every time we eat palm oil, buy a new electronic gadget, or try to keep up with the Jones’s, our purchases contribute to resource extraction that can result in catastrophic extinctions like that predicted for wild gorillas and orangutans in the near future.
I see three fundamental reasons to conserve biodiversity: utility, aesthetics, ethics.
Utility: What good was the passenger pigeon? You and I can’t enjoy the kinds of meals that most of the country ate from time to time, from the earliest people to come to this continent til the late 1800’s. If your family line goes back more than 3 or 4 generations in the US, your ancestors probably ate passenger pigeon. But you cannot. We can’t use the bird’s down and feathers. For those who enjoy hunting, they can’t have the challenge of pursuing this bird that could fly 60 miles per hour. We have lost the ecological functions of the birds as food to other animals (from the peregrine falcon to the endearing American burying beetle), their function as seed dispersers for some of our favorite hardwoods like beech, and their function as competitors with animals like mice. The absence of passenger pigeons allows mice to thrive in unprecedented numbers, providing homes for more ticks than ever, and putting you at greater risk for acquiring Lyme disease as you hike or even just work in your garden.
Aesthetics: Beauty is subjective, but most would agree that the individual bird is pleasing to look at, their flocks awe-inspiring, and their effects on generations of forests gratifying.
Ethics: Who are we, a bipedal, binocular, megacephalic, sparsely-furred primate, to say, “You’re useless, you’re ugly, you deserve to die!”?
Perhaps none of us really feel any different as a result of the loss of the passenger pigeon, yet our life experience is different than it could have been. Maybe the passenger pigeon is not really an “important” species to ensure the survival of humans. But which one is? How do we know? When will we know? Certainly the great web of life that we, as a species, rely on has key players. Will our human activities unravel the web too much?
I hope this tragic centenary will stimulate people to live more sustainably. Reduce your consumption to the minimum. Recycle to the maximum. Don’t worry about how much your neighbors have; set an example of how much one can live without. Do you need a new cell phone every time the contract is up? Do you need a new car, or boat, or tv, or pool, etc., just because your neighbors bought one or your kids bug you for one? Skip processed food, turn off lights, car pool. You’ve heard lots of options. Take the time during this centenary year to find ways that work for you to reduce your impact on the earth and help others to do the same. Make the loss of the passenger pigeon have some redemptive value in your own life.
Visit PassengerPigeon.org for ideas and more information on this remarkable species.
Created: 8/27/2014 Updated: 8/25/2015
September 1, 2014 marks 100 years since the extinction of the majestic passenger pigeon. Though much has changed over the last century, this extinction is still relevant today and should not be dismissed. Over the past year the Nature Museum, as well as many others, have worked to bring attention to this bird that once numbered in the billions. Below is a special guest blog from Joel Greenberg, Nature Museum researcher and author of A Feathered River Across the Sky: The Passenger Pigeon's Flight to Extinction.
"Big Blue", passenger pigeon specimen residing at Millikin University, Illinois
I have been working on passenger pigeons since August 2009. I started with research for a book, and that expanded into a vision of using the 2014 anniversary of the pigeon's extinction as a teaching moment to tell people about the bird and to emphasize aspects of the story that are still critically relevant today. Other people had similar ideas. We had an opportunity to convene in one place when the Peggy Notebaert Nature Museum hosted this important meeting in February 2011. There were folks from a range of disciplines and institutions including the Smithsonian, Cornell University, Wesleyan (CT), Michigan State University, University of Louisiana, Indiana State Museum, Philadelphia Academy of Sciences (now Drexel Institute), University of Wisconsin, and Illinois Natural History Survey. And out of that gathering emerged Project Passenger Pigeon.
We had big plans. The amazing thing is that even with little money raised for P3, many of those plans have been realized. The web site was a huge undertaking and required major help from web-site designer George Mrazek; Steve Sullivan and colleagues from Notebaert; and the Cincinnati Zoo. I traveled to cities like Lansing, Minneapolis, Columbus, Pittsburgh, Indianapolis, and Cambridge spreading the word (Steve Sullivan was a partner in many of these excursions.). A symphony about passenger pigeons that was performed once in the 1850s will be performed at least twice this year, once in Madison and once in New Haven. My book, A Feathered River Across the Sky: The Passenger Pigeon's Flight to Extinction, was released in January 2014, the same day I appeared on the Dianne Rehm national radio show. It has been reviewed very favorably in a number of national publications. The very first public program was a reception held at Peggy Notebaert. (About 200 people were in attendance.) The documentary that David Mrazek and I worked on, From Billions to None: The Passenger Pigeon's Flight to Extinction, was funded through a crowd sourcing effort spear-headed by David. The world premier was shown at Notebaert and over 150 people showed up. (The movie will be airing on WTTW at 10 pm on September 11.) In June, Notebaert opened their wonderful exhibit on extinction, Nature's Struggle: Survival & Extinction.
So this has been a long haul with lots of talks yet to come (by years end I will have given over 60 talks in 23 states and one province). The Peggy Notebaert Nature Museum has been an enthusiastic partner through it all. I really want to thank Deb, Marc, Steve, Doug, Rafael, Alvaro, and everyone else at the Notebaert who have contributed so much to making this centenary so effective as a teaching moment.
Joel GreenbergView Comments
Author and Nature Museum Researcher
Created: 3/26/2014 Updated: 8/9/2016
Bluebirds have been the traditional avian harbinger of spring throughout our nation’s history. However, with the various pressures applied by habitat conversion, heavy pesticide application, and the introduction of exotic competitors like house sparrows and starlings, the bluebird is a species few city dwellers will ever see in their neighborhoods again. On the other hand, human activity has been generally good for the red-winged blackbird and throughout the region---city, suburb and rural areas alike—wherever there is tall grass and some standing water, male red-winged blackbirds are arriving in droves.
As with many bird species, the males arrive first to stake out the best territories; he with the best territory will have the most mating opportunities later in the spring when the females arrive. The male proclaims his fiefdom with a loud metallic call that sounds a bit like a squeaky swing set. At the same time he leans forward to display his eponymous red wings, really just a patch of bright red feathers on his wrist that contrast well with the rest of his jet black body. While it’s a small patch of color, it makes all the difference. The bigger and more intense patches attract the most mates.
In fact, scientists have influenced mating opportunities by experimentally cutting the red feathers off of some males and gluing them on to others. Much like humans who are stereotypically impressed by a man driving a red sports car, regardless of his age or personality, female red-winged blackbirds apparently look no deeper than the red patches on a boys wrists.
Red Sports Car
Hand-me-down van from your parents
Once the male has established his territory, he will aggressively defend it against all interlopers, including you. It can be fun, and a little daunting, to walk past a breeding colony of red-winged blackbirds. Most will simply scream at you but usually one will sneak up behind you and, when you are not looking, he may drop out of the sky and hit you on the back of the head. Keep your eyes to the sky this spring.
Created: 7/27/2013 Updated: 8/9/2016
Bird watching is a popular activity and one where there are few barriers to participation. Both young and old can participate and from any geographic location; you can watch birds in your backyard through kitchen windows or venture out to more wild areas. With this ready access to living birds, what role do bird collections play?
One of the greatest advantages is that specimens allow for up close inspection, for as long as desired. This can be particularly helpful when you want to study a species that is difficult to find in its habitat, when you’re just learning how to identify a species, or when you want to compare features from different individuals.
An Eastern bluebird study skin, Sialia sialis, collected from Diamond Lake, Illinois in 1904.
Bird collections are used for all sorts of research. For instance, museum oology collections were used to identify the effects of DDT on bird egg shells, which lead to banning the use of this hazardous substance. Specimens are used to track changes in a species’ range – check out the range maps the next time you open an identification book; data from museum collections are often used in the creation of these maps.
Here is a nest and egg set of a Northern Shoveller, Anas clypeata.
Specimens that are taxidermied in a behavioral posture are utilized frequently for exhibits. These specimens help illustrate behavior and bring them to visitors who may not have the opportunity to see them first hand in the wild. In order to successfully convey the true nature of an animal, taxidermists need an understanding of how musculature works, but also have an understanding of the animal. Extensive observation of living animals aides in the understanding of a particular species’ behavior, how an animal moves and balances as its walks, and how it interacts with other animals.
Gambel’s quail, Callipepla gambelii, mounted specimen.
The next time you visit the Nature Museum, take a little extra time to study the specimens on display. Note their particular features – the shape of their beaks, the differences in the shape of their feet, the coloration of their feathers. What can you impart from these features about their diet or their activities? Through this observation, you may gain a more thorough understanding of the animals living in this urban nature environment and even spot them more easily in their natural habitat.
Dawn RobertsView Comments