Arizona Eggs Research 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
APRIL 2, 2019
I like observing them, reading about them, grappling with species and subspecies identification, and even—on a good day—talking about sparrow taxonomy. Peterson Reference Guide to Sparrows of North America covers 61 species of the New World sparrow family Passerellidae that breed in Canada, the United States, and northern Mexico.
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10,000 Birds
APRIL 2, 2013
For birders, it’s the extremely large book, shelved in a place where it can’t crush the field guides, used to research the history of a bird in their area. You can see the Species Account for Henslow’s Sparrow above, in the banner photo. A breeding bird atlas is a special kind of book. The second page is the map page.
10,000 Birds
SEPTEMBER 2, 2017
They submitted 144 checklists, noting 628 species adding 72 to the year’s running total bringing it to 1890. Eastern Egg Rock. Eastern Egg Rock. Eastern Egg Rock. Forestry Research Institute of Malaysia. Those are the numbers, here come the birds; Alphabetic Taxonomic. Great Tinamou – Tinamus major.
10,000 Birds
JANUARY 5, 2019
In reverse order, the medals were awarded for “most species seen in a country”, to Australia with 420, USA got the silver, scoring 556 while the runaway winner was Costa Rica with 646 species. Jamaica Bay, Big Egg Marsh. Mexican Whip-poor-will – Antrostomus arizonae. Jamaica Bay, Big Egg Marsh.
10,000 Birds
DECEMBER 1, 2018
8 beats shared 126 checklists accounting for 704 species. Jamaica Bay, Big Egg Marsh. Mexican Whip-poor-will – Antrostomus arizonae. Hopland Research and Extension Center (restricted access). Jamaica Bay, Big Egg Marsh. Arizona Woodpecker – Dryobates arizonae. 13 Jan 2018. 01 Jan 2018.
10,000 Birds
NOVEMBER 3, 2018
During October, 7 countries (Costa Rica, Australia, USA, India, Hong Kong, UK, Serbia) were birded by 11 beats who shared 135 checklists and noted 697 species. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. Alphabetic Taxonomic. 28 May 2018.
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