Question

Are all birds sensitive?​

Answer 1

Birds have comparably lower contrast sensitivity than mammals. Humans have been shown to detect contrasts as low as 0.5-1% whereas most birds tested require ca. 10% contrast to show a behavioural response.

Answer 2

Explanation:

Birds have comparably lower contrast sensitivity than mammals. Humans have been shown to detect contrasts as low as 0.5-1% whereas most birds tested require ca. 10% contrast to show a behavioural response.