Down feather
The down of birds is a layer of fine feathers found under the tougher exterior feathers. Very young birds are clad only in down.
The down of birds is a layer of fine feathers found under the tougher exterior feathers. Very young birds are clad only in down.
The down of birds is a layer of fine feathers found under the tougher exterior feathers. Very young birds are clad only in down.
Source: Wikipedia "Down feather" · CC BY-SA 4.0
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