Bug Identifier
Bird Mite
Community identification

Bird Mite

Ornithonyssus sylviarum / Dermanyssus gallinae

Order & Family
Order: Mesostigmata, Family: Macronyssidae / Dermanyssidae
Size
0.5 mm to 1.0 mm (barely visible to the naked eye)
See this bug in the Encyclopedia

Natural Habitat

Found in bird nests, poultry houses, and indoor environments near window sills or vents where birds nest.

Diet & Feeding

Obligate blood feeders, primarily targeting birds but will bite humans and other mammals if a bird host is unavailable.

Behavior Patterns

They are highly mobile and photophilic. When bird hosts leave the nest, mites migrate in large numbers into buildings seeking a new blood meal.

Risks & Benefits

Risks include skin irritation, intense itching, and 'creeping' sensations on the skin; they do not transmit diseases to humans but cause significant psychological distress and dermatitis.