You are probably talking about down, which is usually taken from ducks or geese and put in things like blankets or coats.
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The feathers on top of a peacock's head are called a "head crest"
penguin chicks have fluffy feathers to protect them from the cold of the antarctic
fluffy
yes
contour feathers
The soft and fluffy down comforter enveloped me in warmth as I curled up on the couch to read a book on a rainy afternoon.
A snowy owl has fluffy white feathers :)
Down jackets are so-called because they contain down, the fluffy feathers found in the undercoat of a duck or goose. Some cheaper down jackets also contain small feathers.
penguin chicks
They have fluffy feathers to keep them warm from the coldness.
All birds do have wings. For birds like Penguins, the wings have turned into flippers.
To conserve feathers, you can do so by putting them in a ziplock bag, in the freezer. This can help to keep the colors bright, and can also help keep the feathers fluffy.