Question

How do some Birds perch on the branch of a tree?​

Answer 1

Answer:

Perching bird can stay in place when they fall asleep on a tree or even a wire. ... When a bird lands on a perch, these flexor tendons tighten, causing the toes to lock around the perch. It's an involuntary reflex. The tendons stay tight until the legs straighten.

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Answer 2

Passerines, or perching birds, stand on their toes, not the flats of their feet as humans do. Depending on the species, birds sleep while standing or sitting with their feet locked on perches, or cling by their claws to tree-trunks.

Different feet for different needs

The average bird foot has four toes, and typically the first toe (the hallux) is turned backward, while the other three toes face forward. This toe arrangement is known Passerines, or perching birds, stand on their toes, not the flats of their feet as humans do. Depending on the species, birds sleep while standing or sitting with their feet locked on perches, or cling by their claws to tree-trunks.

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