📊 Side-by-Side Comparison
| Feature | Bird Mites | Human Lice |
|---|---|---|
| Legs | 8 legs (arachnid) | 6 legs (insect) |
| Found on | Skin and clothing — NOT in hair | Hair shaft and scalp (head lice) or clothing seams (body lice) |
| Source | Abandoned bird nests near structure | Person-to-person contact only |
| Season | When birds leave nests (spring-summer) | Year-round |
| Nits (eggs) | Not attached to human hair | ATTACHED to hair shafts — key ID feature for head lice |
| Diagnosis | Dermatologist inspection; tape test | Visual inspection of hair; find attached nits |
| Treatment | Eliminate bird nest source; permethrin spray room | Permethrin or malathion shampoo; nit comb; wash bedding/clothing |
🔑 Key Differences
Nits attached to hair = head lice
Head lice attach their eggs (nits) firmly to individual hair shafts — this is diagnostic. You cannot blow them off or shake them out. Bird mite eggs are not attached to human hair.
Bird mites appear after bird nest abandonment
Bird mites from nests under eaves, in attics, or in AC units migrate to humans only when birds leave the nest. If itching starts in spring/summer in a specific room, check for nearby bird nests.
Different locations on body
Head lice are on scalp and hair. Body lice are in clothing seams (feed on skin but live in clothing). Bird mites are on exposed skin anywhere — not specifically associated with hair.
⚠️ Which Is More Urgent?
Both require different treatments but neither is medically dangerous if correctly identified and treated. Bird mites: eliminate the bird nest (the source) and apply bifenthrin to affected rooms. Head lice: over-the-counter permethrin shampoo + nit combing. Body lice: treat clothing (wash at 130°F or freeze) and improve hygiene conditions.