Why does a bird lose its neck feathers?
There could be several reasons for the loss of neck feathers.
A bird can lose its neck feathers through natural moulting. Most birds lose some feathers over a period of two months in which new feathers emerge. The bird might also pull out its own feathers during the moulting period.
A bird might have a skin disease, such as a fungal infection like ringworm.
A bird might have a parasite infestation, such as fleas and mites, that makes the neck itch. When the bird scratches, the feathers come out.
Sometimes, a bird is stressed and it sheds feathers when it is anxious.
The bird in the photographs is a Bali Starling (Leucopsar rothschildi). It is native to the island of Bali in Indonesia.
Location of photographs: Paris Zoo, France
Photographer: Martina Nicolls
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM