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  1. A

    Chiang Mai Prinias

    Extensicauda doesn't have a clearly distinct non-breeding plumage. They look essentially the same all year, except have a blacker bill when breeding (especially males). They're pretty distinct from Yellow-bellied on structure (deep-based bill) and plumage (less contrasting, uniform buff...
  2. A

    Chiang Mai Prinias

    Ah, OK. This is where I really miss the free version of HBW. So the non-breeding plumage of blanfordi looks similar?
  3. A

    Chiang Mai Prinias

    All Plain Prinia IMO. The first four images show birds in the non-breeding plumage of the race extensicauda, in which the supercilium becomes reduced and the underparts take on a warm buff tone. They are sometimes mistaken for Yellow-bellied Prinia in this plumage. I don't think the bird in...