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發表於 2011-6-9 09:45 PM
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[自然百科] Why do Rooster Crow in the morning???
Hey... i find this information interesting....
so i want to share with everyone... :)
Have you always wondered why roosters crow in the morning? Do they have an internal alarm clock and are able to mark the start of the day?
Well roosters do not mean to wake the whole world up at the crack of dawn but they crow in the morning because of several reasons.
Roosters crow in the morning because they need to clear out rival males at the start of the
day by crowing loudly and exerting their authority.
They also crow when they detect predators prowling around. Hence, when you hear the rooster crowing in the morning, the rooster is just communicating with the others and trying to keep members of the flock together.
Roosters also crow when they hear other roosters crowing (in the morning) or when they are awakened by sudden flashes of light.
According to Janet Hinshaw of the Wilson Ornithological Society, roosters crow in the morning because “that is when the birds are most active, and most of the territorial advertising takes place then.”
Roosters do crow at all times of the day, ” for other types of communication, including flocking calls”, but it is definitely more obvious in the morning because that’s when we are forced to get up! |
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