BirdCast

BirdCast improves birding—and bird safety

By Barb Gorges

            Last year, the folks at Cornell Lab of Ornithology improved and enhanced BirdCast, http://birdcast.info/. You can now get a three-night forecast of bird migration movement for the continental U.S. This not only helps avid birders figure out where to see lots of birds but helps operators of wind turbines know when to shut down and managers of tall buildings and structures when to shut the lights off (birds are attracted to lights and collide), resulting in the fewest bird deaths.

            The forecasts are built on 23 years of data that relates weather trends and other factors to migration timing.

            Songbird migration is predominately at night. Ornithologists discovered that radar, used to detect aircraft during World War II and then adapted for tracking weather events in the 1950s, was also detecting clouds of migrating birds.

            There is a network of 143 radar stations across the country, including the one by the Cheyenne airport. You can explore the data archive online and download maps for free.

            CLO’s Adriaan Doktor sent me an animation of the data collected from the Cheyenne station for May 7, 2018, one of last spring’s largest local waves of migration. He is one of the authors of a paper, “Seasonal abundance and survival of North America’s migratory avifauna,” https://doi.org/10.1038/s41559-018-0666-4, based on radar information.

            At the BirdCast website, you can pull up the animation for the night of May 6-7 and see where the migrating birds were thickest across the country. The brightest white clouds indicate a density of as many as 50,000 birds per kilometer per hour—that’s a rate of 80,500 birds passing over a mile-long line per hour. Our flight was not that bright, maybe 16,000 birds crossing a mile-long line per hour. A strong flight often translates into a lot of birds coming to earth in the morning—very good birdwatching conditions. Although if flying conditions are excellent, some birds fly on.

            I also looked at the night of May 18-19, 2018, the night before last year’s Cheyenne Big Day Bird Count—hardly any activity. The weather was so nasty that Saturday, our bird compiler rescheduled for Sunday, which was not a big improvement. We saw only 113 species.

            Twenty-five years ago, the third Saturday of May could yield 130 to 150 species. Part of the difference is the greater number of expert Audubon birders who helped count back then. Birding expertise seems to go in generational waves.

            But we also know that songbird numbers are down. I read in Scott Weidensaul’s book, “Living on the Wind,” published in 1999, about Sidney Gauthreaux’s 1989 talk at a symposium on neotropical migrants. He used radar records to show that the frequency of spring migrant waves across the Gulf of Mexico was down by 50 percent over 30 years. Radar can’t count individual birds or identify species, but we know destruction or degradation of breeding and wintering habitat has continued as people develop rural areas.

            But I also wonder if, along with plants blooming earlier due to climate change, the peak of spring migration is earlier. A paper by scientists from the University of Helsinki, due to be published in June in the journal Ecological Indicators, shows that 195 species of birds in Europe and Canada are migrating on average a week earlier than 50 years ago, due to climate change.

            Would we have been better off holding last year’s Big Day on either of the previous two Saturdays? I looked at the radar animations for the preceding nights in 2018, and yes, there was a lot more migration activity in our area than on the night before the 19th. Both dates also had better weather.

           As much fun as our Big Day is—a large group of birders of all skill levels combing the Cheyenne area for birds from dawn to dusk (and even in the dark)—and as much effort as is put into it, there has never been a guarantee the Saturday we pick will be the height of spring migration.

           The good news is that in addition to our Big Day, we have half a dozen diehard local birders out nearly every day from the end of April to the end of May adding spring migration information to the eBird.org database. It’s a kind of addiction, rather like fishing, wondering what you’ll see if you cast your eyes up into the trees and out across the prairie.   I recommend that you explore BirdCast.info (and eBird.org) and sign up to join Cheyenne Audubon members for all or part of this year’s Big Day on May 18. See the chapter’s website and/or sign up for the free e-newsletter, https://cheyenneaudubon.wordpress.com/newsletters/.

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Year of the Bird celebrates Migratory Bird Treaty Act

Painted Bunting.

This Painted Bunting was Jack Rogers’ Audubon Photography Awards entry in 2015. Photo courtesy National Audubon Society.

Year of the Bird celebrates 100th anniversary of Migratory Bird Treaty Act

By Barb Gorges

This is the Year of the Bird. It’s been declared by four august organizations: the National Audubon Society, the National Geographic Society, Cornell Lab of Ornithology and BirdLife International. A hundred other organizations have joined them.

My husband Mark and I have been members for years of the first three, and I’m on the email list for the fourth so I’ve heard the message four times since the first of the year.

The Year of the Bird celebrates the 100th anniversary of the Migratory Bird Treaty Act that protects birds. Read the act at https://www.fws.gov/birds/policies-and-regulations/laws-legislations/migratory-bird-treaty-act.php (remember “take” is a euphemism for “kill”).

The Year of the Bird is also about advocating for birds. Today you can go to the National Geographic website, https://www.nationalgeographic.org/projects/year-of-the-bird/, and sign the Year of the Bird pledge. You’ll receive monthly instructions for simple actions you can take on behalf of birds. The official Year of the Bird website, www.birdyourworld.org, will take you to the National Geographic page, and the other sponsors’ websites will get you there as well.

You may not be aware of National Geographic’s bird credentials. When the National Geographic Field Guide to the Birds of North America came out in the 1980s, it was a must-have sensation. You can find the latest edition at local bookstores and online.

The National Audubon Society, http://www.audubon.org/yearofthebird, is your portal to these articles so far: How Birds Bind Us, The History and Evolution of the Migratory Bird Treaty Act, The United States of Birding and Audubon’s Birds and Climate Change Report. My favorite–Why Do Birds Matter? – quotes dozens of well-known authors and ornithologists.

BirdLife International, http://www.birdlife.org/worldwide/news/flyway, offers ways to think about birds. When you see your next robin, think about where it’s been, what it’s flown over. Think about the people in other countries who may have seen the bird too. Think about the work being done to protect its migratory flyways.

On the other hand, the Cornell Lab of Ornithology begins the year addressing bird appreciation. At one of their websites, https://www.allaboutbirds.org/6-resolutions-to-help-you-birdyourworld-in-2018/, Hugh Powell recommends getting a decent pair of affordable binoculars after reading this guide on how to shop for them, https://www.allaboutbirds.org/six-steps-to-choosing-a-pair-of-binoculars-youll-love/.

Powell also recommends CLO’s free Merlin Bird ID app to get to know your local birds better (or see http://www.AllAboutBirds.org). Then you can keep daily bird lists through CLO’s free eBird program, including photos and sound recordings.

While you watch birds from your kitchen window, drink bird-friendly, shade-grown coffee. There’s an in-depth article at https://www.allaboutbirds.org.

Or play CLO’s new Bird Song Hero game to help you learn how to match what you hear with the visual spectrograph, https://academy.allaboutbirds.org.

Finally, Powell suggests “pay it forward”—take someone birding and join a bird club or Audubon chapter (locally, I’d recommend my chapter, https://cheyenneaudubon.wordpress.com/).

Here in Wyoming our lone U.S. Representative, Congresswoman Liz Cheney, has attempted to take the teeth out of the Migratory Bird Treaty Act with H.R. 4239. She thinks protecting birds should not come at the expense of business.

Earlier threats to birds caused conservationist Aldo Leopold to write in his 1949 book, A Sand County Almanack, “We face the question whether a still higher ‘standard of living’ is worth its cost in things natural, wild, and free. For us of the minority, the opportunity to see geese is more important than television, and the chance to find a pasqueflower is a right as inalienable as free speech.”

I would say that people who appreciate birds are not a minority. And many of us agree with biologist and biodiversity definer Thomas Lovejoy, “If you take care of birds, you take care of most of the environmental problems in the world.”

If it is too cold for you to appreciate the birds while outside, check out National Geographic’s January issue with photos by Joel Sartore. More of his bird photos for National Geographic’s Photo Ark project, studio portraits of the world’s animals, will be in a book coming out this spring written by Noah Strycker, “Birds of the Photo Ark.” Strycker will be speaking in Cheyenne May 14.

Now go to www.BirdYourWorld.org and take the pledge and find out each month what simple action you can take on behalf of birds.

Addendum: Because the paragraph about Liz Cheney was omitted from the column when it was published in the Wyoming Tribune Eagle, I submitted a letter to the editor that was published four days later:

Migratory Bird Treaty Act under attack

Dear Editor,

2018 is the 100th anniversary of the Migratory Bird Treaty Act. The U.S., along with co-signers Mexico, Canada, Japan and Russia, agree to protect birds that cross our borders and theirs.

A hundred years ago there was a battle between conservationists and industrialists and the birds won. Industry is now held accountable for “incidental take” – birds killed unintentionally during the course of business. That has included birds hooked by long-line ocean fishing, birds attracted to oily evaporation ponds in oil and gas fields and birds hit by wind turbines.

These kinds of hazards can add up and make a population-threatening dent. Instead, the MBTA has forced industries to pay fines or come up with ingenious solutions that save a lot of birds.

However, Wyoming’s Congresswoman Liz Cheney is backing U.S. House Resolution 4239 which would remove the requirement to take responsibility for incidental take. Here we are, 100 years later, fighting the battle again.

If you would like to speak up for the birds, please call Cheney’s office, 202-225-2311. The polite person who answers the phone only wants to know your name, address and your opinion, so they know which column to check, anti-bird, or pro-bird and the MBTA.

Barb Gorges

Cheyenne

Bird-finding improves

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Strycker’s book is due out Oct. 10, 2017.

Published August 20, 2017, in the Wyoming Tribune Eagle, “Bird-finding improves from generation to generation.”

By Barb Gorges 

When your interest in birds takes you beyond your backyard, you need a guide beyond your bird identification book. That help can come in many forms—from apps and websites to a trail guide book or local expert.

Noah Strycker needed a bird-finding guide for the whole world for his record-breaking Big Year in 2015. His book, “Birding without Borders,” due out Oct. 10, documents his travels to the seven continents to find 6,042 species, more than half the world total.

In it, he thoughtfully considers many bird-related topics, including how technology made his record possible, specifically www.eBird.org. In addition to being a place where you can share your birding records, it’s “Explore Data” function helps you find birding hotspots, certain birds and even find out who found them. Strycker credits its enormous global data base with his Big Year success.

Another piece of technology equally important was http://birdingpal.org/, a way to connect with fellow enthusiasts who could show him around their own “backyards.” Every species he saw during his Big Year was verified by his various travelling companions.

Back in 1968, there was no global data base to help Peter Alden set the world Big Year record. But he only needed to break just over 2,000 species. He helped pioneer international birding tourism through the trips he ran for Massachusetts Audubon. By 1981, he and British birder John Gooders could write “Finding Birds Around the World.” Four pages of the nearly 700 are devoted to our own Yellowstone National Park.

When I bumped into Alden at the Mount Auburn Cemetery in Cambridge, Massachusetts, (a birding hotspot) in 2011, he offered to send me an autographed copy for $5. I accepted, however, until I read Strycker’s book, I had no idea how famous a birder he was.

As Strycker explains it, interest in international birding, especially since World War II, has kept growing, right along with improved transportation to and within developing countries, which usually have the highest bird diversity. However, some of his cliff-hanging road descriptions would indicate that perhaps sometimes the birders have exceeded the bounds of safe travel.

For the U.S., the Buteo Books website will show you a multitude of American Birding Association “Birdfinding” titles for many states. Oliver Scott authored “A Birder’s Guide to Wyoming” for the association in 1992. Robert and Jane Dorn included bird finding notes in the 1999 edition of their book, “Wyoming Birds.” Both books are the result of decades of experience.

A variation on the birdfinding book is “the birding trail.” The first was in Texas. The book, “Finding Birds on the Great Texas Coastal Birding Trail,” enumerates a collection of routes connecting birding sites, and includes information like park entrance fees, what amenities are nearby, and what interesting birds you are likely to see. Now you can find bird and wildlife viewing “trails” on the Texas Parks and Wildlife website. Many states are following their example.

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The Wyoming Bird Trail app is available for Apple and Android smartphones.

People in Wyoming have talked about putting together a birding trail for some years, but it took a birding enthusiast like Zach Hutchinson, a Casper-based community naturalist for Audubon Rockies, to finally get it off the ground.

The good news is that by waiting this long, there are now software companies that have designed birding trail apps. No one needs to print books that soon need updates.

The other good news is that to make it a free app, Hutchinson found sponsors including the Cheyenne – High Plains Audubon Society, Murie Audubon Society (Casper), Wyoming State Parks, and WY Outside – a group of nonprofits and government agencies working to encourage youth and families in Wyoming to spend more time outdoors.

Look for “Wyoming Bird Trail” app on either iTunes or Google Play to install it on your smart phone.

Hutchinson has made a good start. The wonderful thing about the app technology is that not only does it borrow Google Maps so directions don’t need to be written, the app information can be easily updated. Users are invited to help.

There is one other way enterprising U.S. birders research birding trips. They contact the local Audubon chapter, perhaps finding a member, like me, who loves an excuse to get out for another birding trip and who will show them around – and make a recommendation for where to have lunch.

Citizen science makes difference

Citizen Scientist - cover

“Citizen Science” by Mary Ellen Hannibal, published 2016, recognizes contributions of volunteers collecting data.

Published May 14, 2017, in the Wyoming Tribune Eagle, “Citizen science meets the test of making a difference”

By Barb Gorges

Birdwatchers have been at the forefront of citizen science for a long time, starting with the Christmas Bird Count in 1900.

Today, the Cornell Lab of Ornithology is leading the way in using technology to expand bird counting around the globe. Meanwhile, other citizen science projects collect information on a variety of phenomena.

But is citizen science really science? This question was asked last December at the first Wyoming Citizen Science Conference.

The way science works is a scientist poses a question in the form of a hypothesis. For instance, do robins lay more eggs at lower elevations than at higher elevations? The scientist and his assistants can go out and find nests and count eggs to get an answer [and no, I don’t know if anyone has studied this].

However, there are hypotheses that would be more difficult to prove without a reservoir of data that was collected without a research question in mind. For instance, Elizabeth Wommack, curator and collections manager of vertebrates at the University of Wyoming Museum of Vertebrates, studied the variation in the number of white markings on the outer tail feathers of male kestrels. She visited collections of bird specimens at museums all over the country to gather data.

Some kestrels have lots of white spots, some have none. Are the differences caused by geography? [Many animal traits are selected for (meaning because of the trait, the animal survives and passes on the trait to more offspring) on a continuum. It could be north to south or dry to wet habitat or some other geographic feature.]

Or perhaps it was sexual selection—females preferred spottier male tail feathers. Or did the amount of spotting lead directly to improved survival?

Wommack discovered none of her hypotheses could show statistical significance, information just as important as proving the hypotheses true. But at least Wommack learned something without having to “collect” or kill more kestrels.

Some citizen science projects collect data to test specific hypotheses. However, others, like eBird and iNaturalist collect data without a hypothesis in mind, akin to putting specimens in museum drawers like those kestrels. The data is just waiting for someone to ask a question.

I know I’ve gone to eBird with my own questions such as when and where sandhill cranes are seen in Wyoming. Or when the last time was I reported blue jays in our yard.

To some scientists, data like eBird’s, collected by the public, might be suspect. How can they trust lay people to report accurately? At this point, so many people are reporting the birds they see to eBird that statistical credibility is high. (However, eBird still does not know a lot about birds in Wyoming and we need more of you to report your sightings at http://ebird.org.)

Are scientists using eBird data? They are, and papers are being published. CLO itself recently published a study in Biological Conservation, an international journal for the discipline of conservation biology. [See http://www.sciencedirect.com/science/article/pii/S0006320716301689.] Their study tracked requests for raw data from eBird for 22 months, 2012 through 2014.

They found that the data was used in 159 direct conservation actions. That means no waiting years for papers to be published before identifying problems like downturns in population. These actions affected birds through management of habitat, siting of disturbances like power plants, decisions about listing as threatened or endangered. CLO also discovered citizens were using the data to discuss development and land use issues in their own neighborhoods.

CLO’s eBird data is what is called open access data. No one pays to access it. None of us get paid to contribute it. Our payment is the knowledge that we are helping land and wildlife managers make better decisions. There’s a lot “crowd sourced” abundance and distribution numbers can tell them.

Citizen science isn’t often couched in terms of staving off extinction. Recently I read “Citizen Scientist, Searching for Heroes and Hope in an Age of Extinction,” by Mary Ellen Hannibal, published in 2016. She gave me a new view.

Based in California, Hannibal uses examples of citizen science projects there that have made a difference. She looks back at the early non-scientists like Ed Ricketts and John Steinbeck who sampled the Pacific Coast, leaving a trail of data collection sites that were re-sampled 85 years later. She also looks to Pulitzer Prize-winning biologist E.O. Wilson, who gives citizen science his blessing. At age 87, he continues to share his message that we should leave half the biosphere to nature—for our own good.

Enjoy spring bird migration. Share your bird observations. The species you save may be the one to visit you in your own backyard again.

Birding by app

img_5252Published Feb. 12, 2017, in the Wyoming Tribune Eagle, “Birding by app: new adventures in tech”

By Barb Gorges

Mark and I finally made the jump to smart phones last month. Our children are applauding.

What I was really looking forward to once I was in possession of a smart phone was eBird Mobile. My daughter-in-law, Jessie, was using it when we birded together over the holidays. It means that you can note the birds you see on your phone while you are in the field and then submit them as an eBird checklist.

The second day I had my phone, I went to eBird.org to find out how to downloaded it (in the Help section search for “eBird Mobile”). It’s free. If you aren’t signed up for eBird already, it will help you do that for free also. Then I prepared for a trial run birding out at F.E. Warren Air Force Base with Mark.

Because we are rather miserly with our monthly data allotment, I chose to use the app offline while in the field. But because I was establishing a new birding location for the mobile version, I established it while I was at home and could use our Wi-Fi.

The preparation for offline means you are downloading an appropriate checklist of birds possible for the area. Otherwise eBird Mobile will give you the world list, 10,414 species, to scroll through.

As we birded, I scrolled through the much shorter list of local possibilities and added the numbers of each species seen as I observed them. At the end of the trip, I hit the submit button.

However, on my next eBird Mobile attempt it was bitterly cold. Recording birds while holding a pencil in a mittened hand works, but it was too cold to risk a bare hand to manipulate the touch screen, though I have since invested in “touch screen” gloves.

The mobile app can’t do everything the regular checklist submission process does, like attach photos. But that upgrade may be coming soon. Meanwhile, you can edit your mobile-produced checklists on the eBird website whenever it’s convenient.

I’ve also downloaded the free Merlin Bird ID App, http://merlin.allaboutbirds.org/ and tried it. I told Merlin where I was, what day it was, how big and what color the bird was and where it was (ground, bush, tree, sky) and up popped a photo of the most likely candidate, other possible species, general information and bird song recordings.

Both of these apps are Cornell Lab of Ornithology projects. Both are designed to get more people excited about birds. More data collected means more understanding, and more understanding means better conservation of birds.

The lab has even more up its sleeve. At a recent meeting, staff from far-flung places gathered to discuss making animated migration maps that will allow zooming in on particular locations. Recently, Audubon and CLO announced eBird Mobile is available on the dashboard of select Subaru models. That’s an update I wouldn’t mind seeing the dealer for.

CLO employs a lot of tech people. Job openings on the eBird website list required technical qualifications. Preferred qualifications include “An interest in birds, nature, biology, science, and/or conservation helpful.”

So maybe it doesn’t surprise you that our son Bryan, with a degree from the University of Wyoming in software engineering–and exposed to birdwatching from birth–has become not only a birder, but in October moved to Ithaca, New York, to work for CLO.

He can bird to and from work, walking through the famous Sapsucker Woods. He tells us the winter regulars include many of the same species we see in Cheyenne. However, he says he sees four kinds of woodpeckers: downy and hairy, which we see, but also red-bellied woodpecker and pileated woodpecker, eastern birds.

Surrounded by serious birdwatchers all week, perhaps on weekends you would be forgiven for picking up a different hobby. But no, on the Martin Luther King holiday, everyone from Bryan’s office went up near Seneca Falls and found snowy owls, a gyrfalcon, northern shrike and thousands of snow geese.

The next weekend Bryan and Jessie went back and found two more snowy owls and three kinds of swans.

eBird can help me predict the height of spring migration in Ithaca and I hope to time Mark’s and my visit accordingly. But we must fit in one last trip to Texas to visit our younger son, Jeffrey, before he and his wife move to Seattle for new jobs.

If your children aren’t moving back to Cheyenne, at least let them live in interesting places.

Keeping citizen scientists happy

2016-11flamm-fest-participants-in-2005

Citizen scientists were recruited by the Rocky Mountain Bird Observatory (now the Bird Conservancy of the Rockies) to look for Flammulated Owls in the Medicine Bow National Forest in southern Wyoming in the summer of 2005. Mark and I are standing in front of the sign.

Published Nov. 13, 2016, in the Wyoming Tribune Eagle, “Turning Citizens into Scientists”

Note: The first Wyoming Citizen Science Conference is being held Dec. 1-3, 2016, in Lander. All current and would-be citizen scientists studying birds or any other natural science are welcome. See http://www.wyomingbiodiversity.org.

How to keep a citizen scientist happy

By Barb Gorges

A year after I married my favorite wildlife biologist, he invited me on my first Christmas Bird Count.

It was between minus 25 and minus 13 degrees Fahrenheit that day in southeastern Montana, with snow on the ground. He asked me to take the notes, which meant frequently removing my thick mittens and nearly frostbiting my fingers.

I am happy to report that 33 years later, my husband is the one who takes the notes and the Christmas Bird Count has become a family tradition, from taking our first son at eight months old and continuing now with both sons and their wives joining us.

The Christmas Bird Count started in 1900 and is one of the oldest examples of citizen science, sending ordinary people (most are not wildlife biologists) out to collect data for scientific studies.

In 1999, I signed up for the Cornell Lab of Ornithology’s Project FeederWatch and have continued each year. Last season 22,000 people participated. In 2010 I started entering eBird checklists and now I’m one of 327,000 people taking part since 2002. And there are nearly a dozen other, smaller, CLO projects.

It is obvious CLO knows how to keep their citizen scientists happy. Part of it is that they have been at it since 1966. Part of it is they know birdwatchers. That’s because they are birdwatchers themselves.

How do they keep us happy? I made a list based on my own observations—echoed by an academic paper I read later.

First, I am comfortable collecting the data. The instructions are good. They are similar to something I do already: keeping lists of birds I see. The protocol is just a small addition. For instance, in eBird I need to note when and for how long I birded and at least estimate how many of each species I saw. It makes the data more useful to scientists.

Second, I am not alone. The Christmas Bird Count is definitely a group activity, which makes it easy for novice birders to join us. I especially love the tally party potluck when we gather to share what the different groups have seen that day.

Project FeederWatch is more solitary, but these days there are social aspects such as sharing photos online. Over President’s Day weekend when the Great Backyard Bird Count is on, I can see animated maps of data points for each species. On eBird, I can see who has been seeing what at local birding hotspots.

Third, I have access to the data I submitted. Even 33 years later, I can look up my first CBC online and find the list of birds we saw, and verify my memories of how cold it was in December 1983.

The eBird website keeps my life list of birds and where I first saw them (OK, I need to rummage around and see if I can verify my pre-2010 species and enter those). It compiles a list of all the birds I’ve seen in each of my locations over time (89 species from my backyard) and what time of year I’ve seen them. All of my observations are organized and more accessible than if I kept a notebook. And now I can add photos and audio recordings of birds.

A fourth item CLO caters to is the birdwatching community’s competitive streak. I can look on eBird and see who has seen the most species in Wyoming or Laramie County during the calendar year, or who has submitted the most checklists. You can choose a particular location, like your backyard, and compare your species and checklist numbers with other folks in North America, which is instructive and entertaining.

I would take part in the CBC and eBird just because I love an excuse to bird. But the fifth component of a happy citizen scientist is concrete evidence that real scientists are making use of my data. Sometimes multiple years of data are needed, but even reading a little analysis of the current year makes me feel my work was worthwhile and helps me see where my contribution fits in.

What really makes me happy is that I have benefitted from being a citizen scientist. I’m a better birder, a better observer now. I look at things more like a scientist. I appreciate the ebb and flow of nature more.

If you have an interest in birds, I’d be happy to help you sort through your citizen science options. Call or email me or check my archival website listed below, or go to http://www.birds.cornell.edu.

Bird book reviews: Weidensaul and Cornell Lab of Ornithology

Published in the Wyoming Tribune Eagle Jan. 31, 2016, “Two books suited for winter reading.”

“Owls of North America and the Caribbean,” by Scott Weidensaul. Part of the Peterson Reference Guide Series published by Houghton Mifflin Harcourt, hardcover, 333 pages, $40.

“The Living Bird, 100 Years of Listening to Nature,” by The Cornell Lab of Ornithology and Gerrit Vyn, photographer. Published by Mountaineers Books, hardcover, 200 pages, $29.95.

By Barb Gorges

Two bird books of note were released last fall because they would make perfect holiday gifts, and now I’ve finally read them.

“Owls of North America and the Caribbean” is by Scott Weidensaul, whose previous book about migration, “Living on the Wind,” was nominated for a Pulitzer Prize.

This book concentrates on a group of birds that he has spent nearly 20 years researching. Surprisingly, there are 39 owl species to write about. Half occur south of the U.S., in Mexico and the Caribbean. Twelve of the northern owl species are regularly seen in Wyoming.

The accounts of the Caribbean owls are each only three to four pages long since little is known about them. Our familiar, comparatively well-studied owls have 12-15 pages each.

This is not a field guide, though lavishly illustrated with wonderful photos. Instead, each account sums up what is known about a species: length, wingspan, weight, longevity, range map, systematics, taxonomy, etymology (how it got its name), distribution by age and season, description and identification by age, vocalization, habitat and niche, nesting and breeding, behavior and conservation status.

In a reference like Birds of North America Online, this information is reduced to tedious technical shorthand, but Weidensaul makes it readable, injecting his experience and opinion. Of the snowy owl’s description, he says, “If you can’t identify this owl, you aren’t trying.”

I’ll admit, I haven’t read this book cover to cover yet. I looked up the owls I’m most familiar with, learning new information, and now I’m curious about the others.

One drawback: there is a reference map naming the states of Mexico, but not the states of the U.S. or the provinces of Canada, or the Caribbean countries.

However, all the information presented makes owls more intriguing than ever.

The second book, “The Living Bird,” is a joint project of the Cornell Lab of Ornithology and photographer Gerrit Vyn to mark the 100th anniversary of the lab.

In a 10- by 11-inch format, there is plenty of room for Vyn’s art, the heart of the book. Some birds portrayed life-sized practically step off the page. All of the 250-plus photos are available as individual prints through www.gerritvynphoto.com.

It would be easy to ignore text of this book, except for the name recognition of the contributing authors.

If you missed CLO director John Fitzpatrick’s inspiring presentation at Cheyenne – High Plains Audubon Society’s 40th anniversary banquet in 2014, you can read it here as the introduction, “How Birds Can Save the World.” The age-old human attraction to colorful creatures that fly makes us notice bird reactions to environmental degradation. And in Fitzpatrick’s additional essay, in stories of rehab success, we find that when we help birds, we help ourselves.

The essay by one of my favorite authors, Barbara Kingsolver, hit home. She was a child forced to accompany her parents on birding field trips. But despite her best efforts to rebel, birds have come to be important to her, as I hope they have to my children, who attended many bird events in their early lives.

Scott Weidensaul also has an essay, more of a golly-gee-whiz list of cool things you might not know about birds (including some I didn’t), titled “The Secret Lives of Birds.”

The other major essayists are Lyanda Lynn Haupt, a naturalist and author who examines how birds inspire us, and Jared Diamond, an ardent birdwatcher who is famous as the geographer and author who wrote “Guns, Germs and Steel: The Fates of Human Societies.” He projects what coming decades will hold for birds, after decades of population declines.

There are also three essays written by Vyn about his exhilarating photographic expeditions. Three short profiles include a citizen scientist, a researcher, and an audio recordist. CLO is known for its extensive library of recorded bird songs and other sounds of nature, thus the second part of the book’s title, “100 Years of Listening to Nature.”

After perusing the photos, I could still barely concentrate on the text. But afterwards I enjoyed the photos again and the photo captions. Written by Sandi Doughton, they add insight. The photos themselves are laid out in a thoughtful, coherent way.

Altogether, this is a book to enjoy, a book to inspire, and maybe it is even a book to cause you to take action.

Read now, before spring migration, when you abandon books for binoculars.