A Male chicken is called a cockerel or rooster. A female chicken is called a hen. Cockerels crow (Call) at the the break of dawn, signaling the start of a new day .Before alarm clocks , this helped farmers get up early to care for the animals and tend to the crops. A cockerel often stands on a high perch, keeping guard over his flock of hens . He will crow loudly if he senses any danger , and will attack any animals that threaten him. Cockerels perch high up to sleep at night. This is called roosting