1. Blue-headed duck belongs to the genus Duckling, and Golden-headed duck is an excellent variety of traditional poultry.

2. The blue-headed diving duck has a round body and a big head. The male has a black head and neck with a green luster and white eyes. The upper body is dark brown with brown moth-like spots on the back waist and shoulders, and the female bird's body feathers are pure brown. Golden-headed ducks have more feathers than blue-headed ducks, so they are named after a pinch of golden-green colored feathers on their heads.