Bird Louse (Feather Louse)

Scientific Name: Mallophaga

Order & Family: Order: Phthiraptera, Suborder: Ischnocera/Amblycera

Size: 0.5 mm to 10 mm (typically 1-3 mm)

Bird Louse (Feather Louse)

Natural Habitat

Host-specific dwelling typically found on the feathers or skin of various bird species.

Diet & Feeding

Chewing mouthparts used to feed on feathers, down, skin debris, and occasionally blood or sebum.

Behavior Patterns

Obligate ectoparasites that spend their entire life cycle on the host, passing from parent to offspring in the nest.

Risks & Benefits

Can cause irritation, feather damage, and restlessness in birds; generally poses no risk to humans as they cannot survive off their specific host.

Identified on: 5/17/2026