Vagrancy in Birds
Vagrancy in Birds An exploration of the causes and patterns of avian vagrancyAvian vagrancy--the appearance of birds outside of their expected habitat--is a phenomenon that has fascinated natural…
Specifikacia Vagrancy in Birds
Vagrancy in Birds
An exploration of the causes and patterns of avian vagrancyAvian vagrancy--the appearance of birds outside of their expected habitat--is a phenomenon that has fascinated natural historians for centuries, from Victorian collectors willing to spend fortunes on a rare specimen to today's bird-chasing "twitchers." Yet despite the obsessions of countless ornithologists, what do we actually know about the enigma of vagrancy? Why do some places attract so many vagrant birds? In Vagrancy in Birds, Alexander Lees and James Gilroy explore the causes, patterns, and processes behind the occurrences of these unique birds.Lees and Gilroy draw on recent research to answer fundamental questions: What causes avian vagrancy?
The authors present readers with everything known about the subject, and bring Why are some species more predisposed to long-range vagrancy than others?
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