10,000 Birds
DECEMBER 14, 2021
As of mid-November 2021, the Collaborative had submitted more than 4,200 checklists (up from 1,700 in 2018) and has observed 691 species in the United States (up from 618). Thus, there are now seven states with 200+ observed species. The state with the largest increase was Arizona , with 139 species added.
10,000 Birds
NOVEMBER 13, 2018
As of mid-October 2018, the Collaborative had submitted more than 1,700 checklists and observed 618 species in the United States. The heat map is revealing: Unsurprisingly for a site founded and run by two New Yorkers (one of whom literally wrote the book on birding New York), the Empire State boasts the highest number of species (316).
10,000 Birds
DECEMBER 4, 2012
The following section on Habitats serves to provide the larger picture, frameworks in which to root the hundreds of individual species to follow. It was Massachusetts Representative John Weeks who sponsored and fought for the 1911 Weeks Act, which authorized the use of federal funds for the purchase of forest lands for conservation.
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