Parrots whistling indicate rain.
It is said that parrots and canaries dress their feathers and are wakeful the evening before a storm.
Peacocks.
When the peacock’s distant voice you hear,
Are you in want of rain? Rejoice, ’tis almost here.
When the peacock loudly bawls
Soon we’ll have both rain and squalls.
If the peacock cries when he goes to roost, and, indeed, much at any time, it is a sign of rain.
When peacocks and guinea fowls scream and turkeys gobble, expect rain.
The squalling of the peacock by night often foretells a rainy day.