Great Blue Heron by: Phil Robertson
Thanks to specially shaped neck vertebrae, Great Blue Herons can curl their neck into an S shape for a more aerodynamic flight profile and to quickly strike prey at a distance.
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Dashing through vegetation to catch birds is a dangerous lifestyle. In a study of more than 300 Cooper’s Hawk skeletons, 23 percent showed old, healed-over fractures in the bones of the chest, especially of the furcula, … Read more
The largest flying bird in North America, the California Condor is one of the most endangered birds in the world. Rarely flapping, except during takeoff and landing, it is a superb glider that covers enormous distances each day.
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An American Robin can produce three successful broods in one year. On average, though, only 40 percent of nests successfully produce young. Only 25 percent of those fledged young survive to November. From that point … Read more
American Goldfinch, photo by Phil Robertson
American Goldfinches are the only finch that molts its body feathers twice a year, once in late winter and again in late summer. The brightening yellow of male goldfinches each spring is … Read more