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  1. S

    Yellow Warbler in the Yucatan.

    IMO the second picture shows that it's pigment and not lighting related. I'd expect individuals from the aestiva complex to have a more yellow head with less dark "staining", but I'm not an expert on the taxon.
  2. S

    Yellow Warbler in the Yucatan.

    There's also Golden Warbler (petechia subspecies group) to consider... IMO this picture on its own looks ambiguous. Are there more images of this bird?
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