We've all heard about those "eagle-eyed" birds of prey. The biggest difference in visual performance between a generalized bird and a generalized mammal is...
a. the ability to focus on objects at different distances (accommodation)
b. the degree of stereoscopic (binocular) vision
c. the speed at which visual information is processed
d. the visual acuity (how "sharp" the vision is)
e. All of the above
f. None of the above