Plymouth Rock Rooster

A rooster, also known as a cockerel, or a cock[1] is a male chicken (Gallus gallus) with the female being called a hen. Immature male chickens of less than a year's age are called cockerels. The oldest term is "cock," from Old English coc. The term "rooster" originates from the United States,[2] while in the United Kingdom and Ireland[3] the older term "cockerel" is more widely used. In North America, Australia and New Zealand "rooster" (a relative neologism) is almost always used, occasionally cockerel.[4][5] "Cock" is in general use as the name for a male of other species of bird, for example "Cock sparrow." Wikipedia