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Leaf & forest warblers

Sakhalin Leaf Warbler

Phylloscopus borealoides

Passage migrant / rare winter visitorMedium-High timing confidence

Season in Chiang Mai & Lamphun

Regular arrivalDec 26
PeakJan 9
Regular departureJan 30
Prime windowDec 26 – Jan 23

Habitat

Primary
Evergreen forest undergrowth
Secondary
Stream gullies / damp forest edge
Elevation
Lowland–foothill

Closest practical Chiang Mai option

Doi Suthep–Pui NP (lower–mid slopes)
~8–18 kmMedium-High confidence

Where to look

  1. Fang Hot Springs
  2. Doi Inthanon National Park
  3. Doi Lang

Prime window marks the stronger detected pulse; passage migrants may also show a secondary autumn or spring pulse. Lower-ranked location slots are provisional until species×hotspot reporting frequencies are rebuilt.

Evidence & sources

1 checklist/site-confirmed; 0 range/record-confirmed; remaining slots use habitat/elevation + project effort proxy.

Biological/status source