avian eye

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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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