What do Dai Sheng think of age

Dai Sheng depends on the skin of its legs. The young birds are often delicate, while the old birds have thick leather.In addition to the skin, you can also look at its feathers.For young birds, feathers are generally lighter, and they are also very neat. The old bird's feathers are more messy and look dull.In addition, the young bird's claws do not have a long toenails, and the old bird's toenails should be longer.