HOW ARE BIRS ABLE TO TELL THE TIME?

The Flicker woodpecker of Canada was observed to retire from its activities at precisely 3:35 each afternoon. Just as invisible clocks govern our actions, birds have biological clocks—a timing mechanism inherent in living things—that regulate the periodicity or timing of their activities and behavior.

The Flicker woodpecker of Canada was observed to retire from its activities at exactly 3:35 each afternoon.
Male Northern Flicker Woodpecker
Birds such as owls are equipped with biological clocks that govern the periodicity or timing of their activities and behavior.
Owl
Birds such as swans are equipped with biological clocks that govern the periodicity or timing of their activities and behavior.
Swan
Birds such as red kites are equipped with biological clocks that govern the periodicity or timing of their activities and behavior.
Red kite

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