2000 Research Science Species 
10,000 Birds
APRIL 2, 2024
Osborn, a passionate field biologist who participates to the core of her being three re-introduction projects aimed at saving three very different, endangered species: Peregrine Falcon, Hawaiian Crow (‘Alala)*, and California Condor. Well-researched and footnoted, these sections never feel disconnected from the more personal sections.
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.’).
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10,000 Birds
JANUARY 7, 2020
The book is divided into three parts: “Introduction,” “Avifaunal Overview,” and “Species Accounts.” Most birders will go straight to the “Species Accounts.” It’s important to note that the 301 species selected for this section are those of historical and current importance to the core study area, the northwest Bronx.
10,000 Birds
JUNE 1, 2021
Pough “with illustrations in color of every species” by Don Eckelberry, Doubleday, 1946. The National Audubon Society Birds of North America covers all species seen in mainland United States, Canada and Baja California. The press material says it covers over 800 species, so you know I had to do a count.
10,000 Birds
NOVEMBER 6, 2012
Ridgway himself had 23 species, 10 subspecies, and two genera of birds named for him, including Ridgway’s Hawk.) This is probably one of the reasons Daniel Lewis,the author,turned from writing a popular biography to a history of ornithology as a science and the ornithologist as a profession.
10,000 Birds
SEPTEMBER 10, 2014
Like any birder visiting a new place, I had a target species list I was hoping to seek out during the one day I had available between business commitments. The climatic changes set in motion by the Industrial Revolution are now proceeding at a pace far greater than many species and ecosystems can adapt to naturally.
10,000 Birds
DECEMBER 17, 2014
There’s been some interesting bird research lately, having to do with the origin of birds ( new analysis of new and old fossils ) and the overarching taxonomy ( using DNA analysis ) but I’ve not had a chance to absorb this weighty new knowledge so I’ll probably write about it next month.
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