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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. Don’t worry.

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A Problem with Gulls

10,000 Birds

It is also familiar at inland sites in winter, especially reservoirs and refuse tips, and breeds in the relatively-Northerly regions of Europe, Asia, and North America. OpticsPlanet - Great prices on binoculars for birding , spotting scopes , telescopes , flashlights , compasses & more! Thanks for visiting!

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

10,000 Birds

The sandhill crane has the lowest recruitment rate (average number of young birds joining a population each season) of any bird now hunted in North America. OpticsPlanet - Great prices on binoculars for birding , spotting scopes , telescopes , flashlights , compasses & more! to a high of 11%. Thanks for visiting!

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