Bug Identifier
Bird Mite
Community identification

Bird Mite

Dermanyssus gallinae / Ornithonyssus sylviarum

Order & Family
Order: Mesostigmata; Family: Dermanyssidae or Macronyssidae
Size
0.7 to 1.0 mm (appears as a tiny reddish or brownish speck)
See this bug in the Encyclopedia

Natural Habitat

Often found in bird nests (pigeons, starlings, sparrows) or in homes after birds have left a nearby nest.

Diet & Feeding

Blood of birds (primary host) but will bite humans and other mammals if their primary host is unavailable.

Behavior Patterns

Highly active at night; they crawl out of nesting materials to find hosts. They cannot complete their life cycle on human blood alone.

Risks & Benefits

Causes intense itching and skin irritation in humans (gamasidosis). They do not transmit significant diseases to humans but are major pests to poultry and wild birds.