Branding California Geese Species 
10,000 Birds
MARCH 11, 2011
Brown Boobies ( Sula leucogaster ), Islas Coronado, Baja California © David J. Other birds with webbed feet, including ducks and geese, have only three webbed toes; the hallux (which in birds is usually the “hind toe&# and in humans, the “big toe&# ) is free. That is to say, all four of their toes are webbed.
10,000 Birds
DECEMBER 5, 2017
The 7th edition of the National Geographic Field Guide to the Birds of North America covers 1,023 species that reside, migrate, or have been documented as accidentals or exotics in North America. Species Accounts: With 1,023 species, National Geographic 7 continues to cover the most species of any North American field guide.
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