There are many, for example Blackbirds, and members of the corvid (crow) and icterid (grackle) families.
an ostrich and a peacock have black and white feathers
If the tail feathers have dark horizontal stripes, it's probably a Blue Jay.
we are asking is there not a baby bird with yellow veins in its feathers
Feathers
Many species of bird fledglings have grey and white feathers.
They are about 5000 feathers, approximately.
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coot
Thunderbird
All of them.
Bird feathers.
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