Sheep will bleat, dogs will bark, cats will meow, cats will meow, wolves will meow, so what will chickens do?

Sheep can bleat; Dogs can bark; Cats meow; Wolves purr; Chickens giggle.

When laying eggs, hens make monotonous short sounds of "goo, goo" and "giggle"; The rooster's voice is like "giggle", sharp and loud; Chickens are twittering. Words that describe the crowing of chickens. For example, wow, wow, quack, quack, haw.

Experiments show that rooster crowing is controlled by internal biological clock, but external light and sound stimulation can also induce rooster crowing, but the influence of external stimulation on rooster crowing is also controlled by internal biological clock. When the period of light and dark changes, roosters show the same time difference as people flying over a big time zone. This is because the biological clock of chicken, like that of human, is influenced by melatonin secreted at night (in darkness).