Hi Dylan and Paul
- here are some shots of the underparts - only one of the Northern House Martin, then four of what I think is Asian.
Asian is more compact, and, as you know, often is darker on the flanks and rest of the body, but this is a variable feature. (and according to "The Avifauna of HK" there are two possible AHM races to occur here..!)
[ Last edited by John Holmes at 18/11/2016 07:42 ]
Attachment
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N161110_jjh_13-01.jpg
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Northern House Martin
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A161110_jjh_02-01.jpg
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Asian House Martin
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A161110_jjh_05-01.jpg
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Asian House Martin
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A161110_jjh_11-01.jpg
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Asian House Martin
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A161110_jjh_18-01.jpg
(70.66 KB)
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Asian House Martin
