Friday, 16 November 2012

Friday gulling

One of three Caspian Gulls today in the Rainham area.
Gull numbers are starting to build up nicely for the winter now, and I spent five hours working through them today on my local patch at Rainham Marshes. Visibility ranged from poor to abysmal, with fog hanging in the Thames corridor and failing to clear even by the afternoon. There were no major surprises, but I eventually managed to dig out three Caspian Gulls (the bird above/below, probably a fourth-winter, and two first-winters) and at least 15 Yellow-legged Gulls. I also checked colour many rings, and hope to report back in due course with some interesting results, including for a young intermedius-type Lesser Black-backed Gull which was wearing a continental ring. In the meantime, here are a few photos from the session.

First-winter Caspian Gull - one of two present this afternoon (the other individual being notably darker).
At least 15 Yellow-legged Gulls were present in the area, some already looking in breeding condition.
From left to right: adult or near-adult Yellow-legged, argenteus Herring and graellsii Lesser Black-backed Gulls.

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