The Amblycera are a large suborder of lice, parasitic on both birds and mammals. The Amblycera are considered the most primitive suborder of lice. They roam freely over the surface of their host and, unlike other lice, do not form permanent attachments. They feed by chewing soft areas of skin, causing an area of localised bleeding from which they drink.
Amblycera chew away at younger feathers and soft areas of the skin, causing localized bleeding from which some can drink.
They usually roam freely about the surface of their host and seldom attach firmly to fur or feathers, unlike the avian Ischnocera which are more site specific, and will attach securely to the feathers or fur to escape the preening activity of their host.
His study supported the monophyly of the Phthiraptera, with Anoplura and Rhyncophthirina forming a monophletic group, sister group to the Ischnocera; the Amblycera are the sister group of this assemblage.