Tree Swallow preening

Name: Tree Swallow preening
Uploaded: 2023-08-04
Duration: 35 s
Channel: Muhammad517
Description: A bird's heart beats 1000 times per minute during flight and 400 times per minute at rest.

Muhammad517 3 years ago 6 Views

A bird's heart beats 1000 times per minute during flight and 400 times per minute at rest.