: Irritation from the lice crawling and chewing can lead to skin damage.

: Most bird lice are "host-specific," meaning they have evolved to live on only one or a few closely related bird species.

: To avoid being picked off during a bird’s preening (grooming), many lice have evolved colors that perfectly match their host’s feathers.

: Because they never leave their host voluntarily, they have completely lost the need for wings, relying on specialized claws to cling to feathers. Common Symptoms in Birds