Lesser Black-backed Gull Larus fuscusAdult LBBG alongside adult Herring Gull, West Midlands, January 2017 |
Note rather more elongated and attenuated appearance of LBB Gull. Slightly longer primary projection, with tip of tail aligning nearer p6 in LBBG and nearer p7 in HG.
© A. R. Dean
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