Too best answer this question, it is reccomended you contact your nearest Vet or Pet Store!
A plume are bird feathers or something shaped like birds feathers.
A type of bird That has a plume of feathers on its head which makes it really fluffy
A plume is a long and soft feather on a bird. It is usually located at the top of the bird's head. Plumes can also be long arrangements of feathers. This term is also used to describe long and soft feathers worn by people as hair accessories.
The Bald Egele
how the feathers protect the bird
I can't be completely sure because I haven't seen your bird. But, if your cockatiel is losing feathers on his body, he is probably plucking them out himself out of stress or depression. If he is losing feathers on his head, then another bird is probably preening him too aggressively. Either way, if it doesn't stop soon, I suggest you check with your vet on how to help him. :)
A plump bird with a forward-facing head plume is commonly known as a "crowned pigeon." These birds, native to New Guinea and nearby islands, are recognized for their striking appearance and elaborate crest of feathers on their heads. They belong to the family Columbidae and are known for their gentle demeanor and unique courtship displays.
As far as we know, there is no bird living without feathers.
The long feathers on the back of a bird are typically known as "tail feathers" or "rectrices." These feathers play a crucial role in flight by providing stability and control during aerial maneuvers. Additionally, they can serve various purposes in communication, mating displays, and territorial displays, depending on the species. The length and shape of these feathers can vary significantly among different bird species, reflecting adaptations to their environments and behaviors.
how the feathers protect the bird
It will not be able to fly with no feathers. Feathers keep a bird warm. If its feathers are gone it will die of cold. Most importantly feathers help a bird to escape from predators.
Down feathers are feathers that lie under a birds body and primary feathers. These feathers are small and puffy, and trap warm air under a bird's feathers.