plume

Clean with one's bill.

Dress or groom with elaborate care.

Be proud of.

Rip off; ask an unreasonable price.

Deck with a plume.

“a plumed helmet”

Form a plume.

The light horny waterproof structure forming the external covering of birds.

A feather or cluster of feathers worn as an ornament.

Anything that resembles a feather in shape or lightness.

“a plume of smoke”

“grass with large plumes”