What is the difference between a chicken and roster?

* Rooster: A male chicken. They have distinctive features like a larger comb and wattles, spurs on their legs, and they crow.

* Chicken: A general term for any bird of the species *Gallus gallus domesticus*, including both male and female. A female chicken is called a hen.

So, a rooster is a type of chicken, but not all chickens are roosters.