California Condor North America Science Species 
10,000 Birds
JUNE 1, 2021
Pough “with illustrations in color of every species” by Don Eckelberry, Doubleday, 1946. And now we have the third iteration in Audubon’s guide book history: National Audubon Society Birds of North America. The press material says it covers over 800 species, so you know I had to do a count.
10,000 Birds
OCTOBER 2, 2012
But, before Jerry Liguori’s wonderful photographic guides of Hawks at a Distance (2011) and Hawks from Every Angle (2005) and before Clark and Wheeler’s classic Field Guide to Hawks of North America (2nd ed., The original Hawks in Flight treated 23 raptors, the major hawks that migrate through North America.
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