Birding/birds

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Question
hello M.Lederer, please, 1.what is pressure force talons golden eagle ; great horned ; bald eagle ; harpy eagle ?                                          2.what is bite force macaw parrot ; eagle ; vulture ?  merci beaucoup.

Answer
Unfortunately, this question is much too detailed for me to answer off the top of my head. I would have to go into the ornithological literature and spend hours researching the answers, and frankly, I'm not sure anyone has done the research on all these birds. Can you tell me what you need this information for?

Birding

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Roger Lederer

Expertise

Any and all about WILD birds - the science of ornithology. Information about birdwatching, ecology, conservation, migration, behavior, banding, rehabilitation, feeding, songs, binoculars, identification, and careers in ornithology. No questions about pet or caged birds, please.

Experience

Have a PhD and over forty years as a professional ornithologist - research, teaching, author, speaker, webmaster of Ornithology.com . Have written thirty scientific papers, three bird field guides, a textbook in ecology and two recent books entitled "Amazing Birds" and "Birds of New England". Have traveled to over 90 countries watching birds.

Education/Credentials
PhD in Zoology/Ornithology; Emeritus Professor of Biological Sciences; former Dean of the College of Natural Sciences at California State University, Chico

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