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Second Atlas of Breeding Birds in Pennsylvania: A Review by an Atlas Novice

10,000 Birds

For ornithologists, it is the documentation of a multi-year project designed to record the distribution and abundance of birds in a specific area (in North America, usually a state or a province), utilizing a mapping method involving blocks and grids. You can see the Species Account for Henslow’s Sparrow above, in the banner photo.

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The Feathery Tribe: A Book Review

10,000 Birds

Ridgway himself had 23 species, 10 subspecies, and two genera of birds named for him, including Ridgway’s Hawk.) The team explored Nevada and Utah, with Ridgway collecting thousands of bird specimen, plus nests and eggs for the Smithsonian. Robert Ridgway wrote over 500 articles and 23 books, illustrating many of them himself.