Common or Siberian Chiffchaff? Please ID ..
Long Valley 05/01/2014
It has been suggested by someone that the Siberian is the most easterly of the chiffchaffs and therefore most likely to occur in Hong Kong .. Also, the nominal "common chiffchaff" has much more olive/greenish hue in the upperparts.
[ Last edited by wilsondring at 5/01/2014 18:30 ]
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5/01/2014 17:53