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Leaf & forest warblers
Bianchi's Warbler
Phylloscopus valentini
Winter visitorHigh timing confidence
Season in Chiang Mai & Lamphun
Regular arrivalNov 7
PeakNov 28
Regular departureMar 6
Prime windowNov 14 – Dec 12
Habitat
- Primary
- Forest / woodland
- Secondary
- Forest edge / gardens
- Elevation
- Montane
Closest practical Chiang Mai option
Doi Suthep–Pui NP (upper road / Doi Pui)
~15–25 kmHigh confidence
Where to look
Evidence & sources
3 checklist/site-confirmed; 0 range/record-confirmed; remaining slots use habitat/elevation + project effort proxy.