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Vagrancy in Birds: A Book Review

10,000 Birds

There are many more factors than I imagined: compass errors, wind drift, overshooting, extreme weather and irruptions, natural dispersal, and human-driven vagrancy. The chapter on compass errors will probably be the most popular amongst birders who love to discuss reversal and mirror-image migration routes.

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Pigeons have tiny compasses in their heads

10,000 Birds

It turns out that the latest research shows that birds use magnetic information form the Earth’s magenetosphere to find their way around, able to detect the orientation of the magnetic flux as well as its strength. However, how the brain receives and interprets magnetic field information is unknown. Le-Qing Wu and J.

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Licking Clay: the Macaws of Tambopata, Peru

10,000 Birds

The thousands of hours of observations that have been added up over the years would not have been possible without the help of the many volunteers and assistants who have offered their time and energy in the cause of science and conservation. Volunteers are one of the most important aspects to the project. Thanks for visiting!

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A Problem with Gulls

10,000 Birds

Mayr technically studied medical sciences, but he was a true and fanatic/fantastic birder and this was the reason for him choosing Greifswald over any other university – he wanted to go birding there. OpticsPlanet - Great prices on binoculars for birding , spotting scopes , telescopes , flashlights , compasses & more!

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A Question of Migration

10,000 Birds

It turns out that humans without compasses make no use of magnetic fields.) They can use this form of sensory input to navigate, integrating this information with other data to determine and adjust migration routes as adults. Annals of the New York Academy of Sciences, 1046 (1), 282-293 DOI: 10.1196/annals.1343.026 2 PIERSMA, T.,

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The Nonessential Whooping Crane

10,000 Birds

My friend Vickie Henderson , who has some serious long-range vision, looked at the science behind Tennessee’s crane hunting proposal and found it badly wanting. OpticsPlanet - Great prices on binoculars for birding , spotting scopes , telescopes , flashlights , compasses & more! Here’s the petition. Thanks for visiting!

2011 243
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ACTION ALERT! Tomorrow, MARCH 15, 2011, is the deadline for public.

10,000 Birds

Her writing is based on keen observation of animal and human behavior, and she likes to interweave solid natural history information with larger philosophical themes to challenge and inspire the reader. OpticsPlanet - Great prices on binoculars for birding , spotting scopes , telescopes , flashlights , compasses & more!

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