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Swallows & swifts
Siberian House-Martin
Delichon lagopodum
Winter visitorMedium timing confidence
Season in Chiang Mai & Lamphun
Regular arrivalNov 14
PeakNov 21
Regular departureJan 30
Prime windowNov 14 – Dec 5
Habitat
- Primary
- Open sky over valleys / wetlands
- Secondary
- Paddies, rivers and mountain foothills
- Elevation
- Lowland–foothill
Closest practical Chiang Mai option
Huai Tueng Thao / northern valley airspace
~12 kmLow confidence
Where to look
Evidence & sources
2 checklist/site-confirmed; 0 named district/range records; remaining slots use habitat + project public-hotspot evidence.