There are four toes on each chicken claw, which are distributed in three front and one back, while there are five toes on the chicken claw of black-bone chicken and one toe at the base of the hind toe.

Distinguishing method:

1. The cock's comb is large, with prominent ridge and bright red color, while the hen's comb is small, with inconspicuous ridge and light color.

2. The cock's tail is straight, the tail feather is long, the hen's tail is short, and the tail feather is close to the chicken.

3. Cock feathers are mostly red, orange, gold or blue-green, while hen feathers are mostly gray or yellow.