Birds Breeding North America Science 
10,000 Birds
JUNE 1, 2021
Audubon guides to birds have been around since 1946. The first guide bearing the National Audubon Society imprint was Audubon Bird Guide; Eastern Land Birds , written by Richard Hooper Pough, and illustrated by Don Eckelberry. Plate 28 from Audubon Bird Guide, Eastern Land Birds, by Richard H. Knopf, 1994/97.
10,000 Birds
MAY 17, 2016
I want to alert you to a recent study (from April) that looks at the plight of bird populations under conditions of climate change in Europe and North America. The study looked at common birds, and used data divided by either state (in the US) or country (in Europe). Stephens et al. Stephens, Philip, et al.
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10,000 Birds
APRIL 29, 2024
Maybe the latter is because the bird is so plump, or maybe it is because (at least to me) the head looks like it has been created by a somewhat amateurish wood carver. Finally, there is an interesting paper trying to estimate the economic value of a Steller’s Sea Eagle – in this case, a vagrant showing up in North America.
10,000 Birds
OCTOBER 6, 2015
Here are some things I’ve learned from the Peterson Reference Guide to Owls of North America and the Caribbean by Scott Weidensaul: The Burrowing Owl is the only North American owl species where the male is larger than the female, albeit, only slightly larger. And the term is ‘non-reversed size dimorphism.’).
10,000 Birds
MAY 7, 2024
a handful of times, only to realize how important it is to have a resource that will help birders differentiate amongst these very similar looking birds. Fork-tailed Flycatcher is a seven-page bird, partly because the account includes a vagrancy chart (another new feature). Introductory Material Sixteen species, 190 pages.
10,000 Birds
FEBRUARY 17, 2015
I was going to have something for you this month about the dinosaur-bird thing, but I never got to it. The potpourri covers some interesting bird related science of the last few weeks, and the promise is this: I’ll get to that other stuff soon, I promise! One of the birds most affected by this is Cassin’s Auklets.
10,000 Birds
MAY 2, 2023
Flight Paths is a splendid but risky title for a book about bird migration. It could easily be mistaken for a book about aviation or space navigation or even a flight simulator game if you don’t read the long, adjective-filled subtitle: How a Passionate and Quirky Group of Pioneering Scientists Solved the Mystery of Bird Migration.
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