moult
moult
noun
A period when an animal sheds its old feathers, hair, or skin.
"The dog's heavy moult left fur everywhere."
verb
Shed old feathers, hair, or skin to make way for new growth.
"Many birds moult their feathers in autumn."
Thesaurus
Synonyms: shed, exuviate, molt, slough, molting, ecdysis, moulting