These chickens are giving me the side-eye. The closest ones look at me with their right eye, the ones further away with their left eye.
This is because the right eye is nearsighted and the left eye is far-sighted - so when they get closer, the head switches sides.
Chickens can also see UV light, so they perceive more of the spectrum than humans, but they have extremely poor nightvision and thus go to bed (roost) early.
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