Category Archives: Book Reviews

The Great Auk (Book Review)

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If you are a fan of entertaining tales that blend bird biology, history, and human eccentricity, Tim Birkhead’s new work The Great Auk (Bloomsbury, 2025) will find a welcome place on your night stand. I have to confess that this is the first Birkhead book I have read, but the title suggested a fascinating story about a topic I knew very little about, so right away I requested a review copy from the publisher. My efforts did not disappoint.

The Great Auk by Tim Birkhead (Bloomsbury, 2025)

For me, the first question that needed answering was, “What the heck was a Great Auk?” I had, of course, heard of Great Auks during my twelve years observing, researching, and writing about birds but I hazily lumped them in with the totally unrelated Dodo and elephant birds. Why?  Probably because all of these birds had been large and flightless—and all had gone extinct. Other than that, I knew almost nothing about Great Auks.

Great Auks were the original penguins, conferred the genus name Pinguinus. The origin of the name penguin is uncertain but may refer to the bird’s white head or white eye patch. In any case, the name was later applied to flightless birds of the Southern Hemisphere, even though they bear no close relationship to the Great Auk. (Photo copyright Errol Fuller)

Upon opening Birkhead’s book it was therefore a great relief to learn, “Oh, yeah. Great Auks are actually auks—seabirds!” I mean, duh, right? Members of the Alcid family, their closest living relatives appear to be Razorbills, something I found delightful since Braden showed me my first Razorbills only last Thanksgiving when our family had the chance to visit Cape Cod (see post Birding Race Point). Birkhead is quick to point out, however, that surprisingly little is known about Great Auk biology, much of it speculation from the relatively scant specimen material that has survived.

Seeing one of the Great Auk’s closest relatives, Razorbills, provided a living link to the tragedy of the Great Auk’s extinction.

Which, of course, brings us to the tragic fact that Great Auks were quickly and efficiently wiped out almost as soon as seafaring Europeans on their way to North America figured out where the birds nested. That happened to be remote islands in the North Atlantic, and in historical times, there probably never were more than a handful of breeding sites for the birds. In early chapters, Birkhead especially focuses on what was clearly the most important site, Funk Island. Here, tens—perhaps hundreds—of thousands of Great Auks gathered every year. Couples would each lay their single, exceedingly large egg and work together to feed the resultant, rapidly-growing chicks from the abundant fish schools nearby.

Like Razorbills, puffins, murres, and murrelets, guillemots such as this Black Guillemot are members of the Alcid family, and close relatives of the Great Auk.

When Europeans did discover the auk bounty to be had, the slaughter began. Ships heading to what is now northeast Canada stopped over to feast on the auks and preserve them for food. Later, egg, skin, and feather collectors helped finish them off. Birkhead especially documents the brutal habits of egg collectors. Not wanting to obtain eggs with well-developed embryos inside, the collectors would intentionally crush every egg that they found. Returning a few days later, they could be assured that the embryo inside of any new egg had not yet developed, and its contents could be easily removed through a tiny hole made in the shell. Officially, the last two auks were killed in 1844, though it is likely that a few isolated individuals survived into the following couple of decades.

Birkhead neatly divides The Great Auk into two parts. The first focuses mainly on the history of the bird, its demise, and what can be constructed of its biology from historical accounts, surviving specimens, and extant relatives. Part 2 focuses mainly on some of the more rabid egg and skin collectors, especially Vivian Hewitt, who somehow managed to acquire thirteen Great Auk eggs for his vast collection of approximately half a million bird eggs.

A selection of known surviving Great Auk eggs shows their great variety, which may have helped parents identify them in the crowded breeding colony. This variety also partly explains why they were so attractive to collectors. (Illustration by Henrik Grønvold, 1907)

I have to say that I enjoyed Part 2 just as much as Part 1. Few of us realize this today, but oologist—a term coined for egg collectors that attempted to confer scientific legitimacy upon a practice that we now consider despicable—was all the rage in the early 1900s. It was practiced much as stamp and coin collecting were when I was a kid—and with little thought about the consequences for birds. Collectors routinely not only gathered an egg of a species, but entire clutches of eggs and even hundreds from the same species, searching for variety, fame, and fortune.

As perhaps the wealthiest participant in the field, Hewitt spent a small fortune both obtaining individual eggs and opportunistically snapping up entire collections of other egg collectors when their fortunes turned for the worst. Most prized of Hewitts acquisitions were the eggs and mounted specimens of the Great Auk that he managed to obtain, each of which has a story—and many of which Birkhead traces to fascinating effect. I won’t say more about this fine book, but if you enjoyed Christopher Skaife’s The Ravenmaster and Joshua Hammer’s The Falcon Thief, you are almost guaranteed to love The Great Auk, too. And if you do, why not help prevent the extinction of other bird species by donating to the American Bird Conservancy, the National Audubon Society, or another group working to protect our precious surviving species? Thousands of bird species are in trouble and the need is great.

Author Tim Birkhead. (Photo by K. Nigge)

Sea of Grass (Book Review)

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This week, I’m pleased to announce that I’ve agreed on terms for a new book project with Mountaineers Books, publisher of my books Warblers & Woodpeckers: A Father-Son Big Year of Birding and Birding for Boomers—And Everyone Else Brave Enough to Embrace the World’s Most Rewarding and Frustrating Activity. My new book, scheduled for release in 2028, emerged from the epic birding trip Braden and I took through eastern Montana last summer, and focuses especially on the shortgrass prairie and birds that live there. As is so often the case, I am not the only author to be thinking about this remarkable, highly threatened landscape. Witness the new release, Sea of Grass: The Conquest, Ruin, and Redemption of Nature on the American Prairie (Random House, 2025).

Sea of Grass is required reading for anyone interested in prairie birds and their futures.

In Sea of Grass, authors Dave Hage and Josephine Marcotty have created an impressive work that covers the entire sweep of human understanding and conquest of the American prairie. The authors set the stage by giving us solid background on the richness and diversity of North American grasslands. They recount the geological and climatological conditions that created our great prairies. They give us a glimpse of the remarkable number of species that live both above and below ground, comparing our grasslands favorably to the biodiversity of rainforests and coral reefs. They also explain the incredible amount of carbon that these natural systems sequester.

Grain elevators stand as scenic symbols of the Midwest economy—and of continuing threats to our remaining shortgrass prairie.

What really stands out in the book are the chapters documenting the breathtaking exploitation and destruction of tallgrass prairie, and how technology has managed both to raise agricultural production and create almost unimaginable environmental problems. Even as someone who has followed environmental issues all of my life, I learned an astonishing amount. Have you ever heard of tile drainage? I hadn’t, but it is a drainage system that not only allows farmers to raise abundant crops on otherwise unsuitable land, but mightily contributes to funneling harmful fertilizers and pesticides into rivers, lakes, wells, and other water sources throughout the Midwest. Scientists have established clear links between agricultural practices and the enormous dead zones that occur every year in the Gulf of Mexico. Meanwhile, hundreds of cities such as Des Moines have to spend millions—probably billions—of dollars to try to remove harmful fertilizer residues from drinking water supplies.

The authors explain that while Iowa and other Midwest states have lost virtually all of their original tallgrass prairie to agricultural conversion, the arid nature of the shortgrass prairie traditionally rendered it unsuitable for growing crops. Instead, cattle was king on these lands—including much of the Dakotas, Montana, and Wyoming. Alas, genetic engineering and other technologies have now opened up these fragile, dry lands to farming. I had thought that the great era of prairie conversion had ended, but in the US we are now losing more than one million grassland acres to the plow every year.

The loss of more than a million acres of shortgrass prairie to farming each year not only threatens grassland birds like this Upland Sandpiper, but an ecosystem with a diversity rivaling that of tropical forests and coral reefs.

For anyone who cares about the incredible diversity found in these grasslands—including its remarkable suite of grassland birds—this is horrible news indeed. It also sheds a positive light on the importance of sustainable cattle ranching and “keeping grass in grass,” as one Montana biologist puts it. What makes the situation especially frustrating is that conversion of grasslands to cropland isn’t primarily driven by demand for food, but by billions of dollars of tax breaks, mandates, and other government subsidies for growing corn to produce ethanol. These subsidies arose from efforts to help America achieve energy independence. Instead, they have helped create a system that continues to destroy natural ecosystems while creating immense quantities of a product that we simply don’t need (see, for instance, this report from Wisconsin). Unfortunately, by driving up corn prices, the ethanol boondoggle has made many corn growers extremely wealthy and politically powerful, almost eliminating the possibility of rolling back this pork barrel waste of taxpayer dollars.

99% of Iowa’s tallgrass prairie was lost to agricultural conversion. Today, wasteful government farm subsidies for ethanol help drive the rapid loss of shortgrass prairie in Montana and other states.

Fortunately, the authors don’t leave us with a totally grim outlook for America’s remaining grasslands. Throughout the book, but especially in the final section, the authors detail a number of small-scale efforts to protect and restore grasslands as well as to reduce the incredible environmental costs of modern-day agricultural methods. In Montana, these range from the creation of American Prairie to the practice of rotational cattle grazing to tribal and ranching successes reintroducing bison back onto the landscape. I don’t want to reveal too much, but I’m confident you’ll find these and other efforts as fascinating and hopeful as I have.

Scientist Diane Debinski searching for rare butterflies at Iowa’s Neal Smith National Wildlife Refuge, one of a handful of projects to restore tallgrass prairie habitat. This project was the subject of my 2005 book, The Prairie Builders.

Although it gives fairly brief coverage to grassland birds, if you care about grassland birds—not to mention bison and grassland ecosystems in general—Sea of Grass is absolutely required reading. Especially if you live in or near the Great Plains, it provides vital insights into the huge economic and cultural forces at work in our region. As a bonus, the authors’ clean, entertaining writing style help make this one of the most worthwhile books you are likely to crack open this year.

Summary: A fascinating crash course on the biological, economic, and cultural history of America’s grasslands and the growing efforts to protect what’s left of these remarkable ecosystems.