
Community identification
Bird Mite
Ornithonyssus sylviarum / Dermanyssus gallinae
- Order & Family
- Order: Mesostigmata; Family: Macronyssidae or Dermanyssidae
- Size
- Approximately 0.5 mm to 1 mm (hardly visible to the naked eye until they feed).
Natural Habitat
Found near bird nests, especially around windows, vents, and eaves; can migrate indoors when birds leave the nest.
Diet & Feeding
Strictly hematophagous (blood-feeders), typically targeting birds but will bite mammals if a primary host is unavailable.
Behavior Patterns
They are highly mobile, active during the night or overcast days, and exhibit a crawling behavior. They cannot fly or jump but can travel significant distances to find a host.
Risks & Benefits
Risks include skin irritation, intense itching (mamasiasis), and potential secondary infections from scratching. They are considered pests and do not provide ecological benefits in a domestic human setting.