Stationary underwater prey missed by reef herons, Egretta gularis: head position and light refraction at the moment of strike

This paper attempts to verify the importance of spatial positioning of the eyes of reef herons Egretta gularis schistacea, when coping with light refraction at the air-water interface.

Gadi Katzir et al, J Comp Physiol A (1989) 165:573-576