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 is added at the base of the hind toe.

Distinguishing method:

1. Cock's comb is large, with prominent ridges and bright red color, while hen's comb is small, with inconspicuous ridges and light color.

2. The cock has a straight tail and a long tail feather, while the hen has a short tail 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.