The basic anatomical parts of chicken (Gallus gallus domesticus) are listed here.
“The single comb shape is the most common variety of comb, and usually the most well known. It's...Single comb
“The uropygial (\ˌyu̇r-ə-ˈpī-jē-əl-\) gland, usually simply called the oil gland, or the preen...Uropygial gland
“The Walnut Comb is a less common comb found on chickens like the Silkie and the Orloff.Walnut Comb