do bird visual fields have overlap?

Andrew Taylor andrewt at cse.unsw.edu.au
Tue Jun 1 19:39:03 EST 1993


In article <1ugav7$ipa at mail.fwi.uva.nl> smagt at fwi.uva.nl (Patrick van der Smagt) writes:
>But it this true?  How much overlap do their visual fields,
>indeed, have?  Do birds see stereo?

There is great variation, some birds such as Hornbills have no overlap
others such as Owls have a large overlap similar to ours. Most would have
some overlap, some have overlap both to the front and to the rear.
The Woodcock has more overlap to the rear than the front!

Stereoscopic depth perception has been demonstrated in some birds.
Welty's Life of Birds is good starting point for questions abour birds.

Andrew Taylor



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