Down
Filoplumes are also known as hair-like feathers. They are narrow, hair-like feathers with a sensory function that are typically found near contour feathers in birds.
i would say it is a cardinal
Contour Maps,actually,contour maps measure their elevations.
Soft kind of feather.
Down feathers.
R134a
There are no feathers in a golf ball.
According to the 1997 Ford Contour Owner Guide ( 5W-30 )
R134a
A contour diagram.
Bats are mammals and do not have feathers of any kind anywhere. They have skin.
Feathers