It is called preening.
Birds replace their feathers periodically in a process called molting. During molt, old feathers are shed and new feathers grow in their place to maintain the bird's ability to fly and insulate itself.
Disease - birds do not normally loose their feathers. When they change them it is called moult. Moulting is a process (like shedding in mammals) done regularly by birds, to replace old feathers with new, healthy feathers. This is normal. When a bird loses many feathers at once, it is usually due to the bird plucking out its own feathers OR a condition called French Moult, for which there is no cure.
Disease - birds do not normally loose their feathers. When they change them it is called moult.Moulting is a process (like shedding in mammals) done regularly by birds, to replace old feathers with new, healthy feathers. This is normal. When a bird loses many feathers at once, it is usually due to the bird plucking out its own feathers OR a condition called French Moult, for which there is no cure.All birds may or may not lose their feathers. It is only when this happens to them and or they die.
Most baby birds are born with feathers called 'down'.
Yes, they will re-grow after the next molt.
Birds
yes infact the penguin doesn't have feathers But they do. All birds have feathers of some sort.
They are called Down Feathers. Why, I have no idea.
Yes. All birds lose feathers in the natural process ofmolting(replacing worn-out feathers with new ones by shedding them and growing new ones). Birds can also lose feathers by near escapes with predators.
The feathers on top of a peacock's head are called a "head crest"
The study of feathers is called pterylography. It focuses on the arrangement, structure, and growth of feathers on birds. Researchers use feathers to study aspects such as species identification, evolution, and health.
Contour feathers. Wait: I was wrong. The answer is remiges.