To test if a branch is strong enough to support the nest and her young, the female flies at a prospective branch at great speed. She, crash-lands onto it and clings to it, repeating the process until she can be sure that it is suitable.
To test if a branch is strong enough to support the nest and her young, the female flies at a prospective branch at great speed. She, crash-lands onto it and clings to it, repeating the process until she can be sure that it is suitable.