Eli5 Why do birds have such twitchy movement?

Question

Compared to mammals, birds seem to have this jerky, almost robotic quality to the way they move. I was wondering if there’s any explanation for this

In: 1836

Answer 1

Birds and most of all other animals smaller than us, percieve time at a much slower rate than us. Their reaction time, reflexes, movement speed, and ability to process things is usually much better than ours.