birding-aus
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Subject: | avian eye |
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Date: | Thu, 13 Mar 97 16:40 EST |
Greetings trying to find a reference to acuity in birds. Somewhere i saw a series of drawing showing what a raptor sees compared with what a human sees. for example, a rabbit at a given distance looks 2.5 (?) times as large to a raptor as to a human. As i understand it, a decade ago acuity was thought to be much higher in raptors (8 times) but is now thought to around 2-3 times. Anyone know a reference or recent review? cheers Paul Paul Andrew Curator Taronga Zoo PO Box 20 Mosman NSW 2088 Australia |
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