do bird visual fields overlap?

Patrick van der Smagt smagt at
Wed Jun 2 00:01:25 EST 1993

lbarea at writes:

>Some birds do see in sterio,
>Natural selection is likely to have favoured sterio vision

As to why the gannet would not use stereo vision, this reference is

	D. N. Lee, The optic flow field: The foundation of vision,
	Phil. Trans. R. Soc. Lond., B 290, pp. 169--179, 1980.


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