Question

why chicken and roosters wake up early in the morning

Answer 1

A rooster crows because he has an internal clock that helps him anticipate sunrise. Like all birds, roosters sing – or crow – in a daily cycle. Almost all animals have daily cycles of activity known as circadian rhythms that roughly follow the cycle of day and night.
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But according to my view they are so jobless...

Answer 2

chickens have large number of rod cells that help them detect the intensity of light easily.
so, chicken and roosters wake up early.
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