10,000 Birds
AUGUST 3, 2021
There was a time when I thought each bird species had its own individual song. Then I found out that there was this vocalization called a ‘call,’ so I thought each bird species had its own individual song (but just the males) and individual call. Bird communication is a complex and evolving science. How do they know?
10,000 Birds
MAY 12, 2020
Others might require a life list or the ability to identify a specific number of species, or some other criteria. However, at least one source reported that way back in 2002, there were approximately 700,000 copies in print of the Sibley Guide to Birds and 250,000 of Kenn Kaufman’s Field Guide to Birds of North America.
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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. The 39 owls include five endemic Caribbean species.
10,000 Birds
OCTOBER 2, 2012
The new edition adds 11 species, birds such as Zone-tailed Hawk, Short-tailed Hawk, and California Condor that are only seen in specific areas of North America. Individual species accounts follow, featuring a description of the hawk’s range, a little of its history in North America, sections on Identification and In Flight.
10,000 Birds
APRIL 7, 2016
Others might require a life list or the ability to identify a specific number of species, or some other criteria. However, at least one source reported that in 2002, there were approximately 700,000 copies in print of the Sibley Guide to Birds and 250,000 of Kenn Kaufman’s Field Guide to Birds of North America.
10,000 Birds
MARCH 16, 2014
Steve Kelling from the Cornell Laboratory of Ornithology gave the keynote talk, “The Birder Effect: Birding, Science, and Conservation.” The talk described eBird’s origins in 2002 and traced its history as a project aimed at using “citizen science” to help researchers and conservationists learn more about birds. .
10,000 Birds
JULY 10, 2012
More than 150 bird species are known to have become extinct over the past 500 years, and many more are estimated to have been driven to extinction before they became known to science. The Gray Crowned-Crane is a new addition to the list of the world’s Endangered species, creeping up a category from Vulnerable.
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