Sunday, 15 December 2013

Sub-adult hybrid Herring x LBB Gull, Skateraw, 15 December 2013



I had only commented on Twitter yesterday that I had been unable to find a hybrid gull in Edinburgh for a few months (despite looking hard) when I picked one out at Skateraw Landfill site East Lothian today. Viewing is distant and the images poor. Aging these subadults is hard as I am pretty sure they follow their own rules in terms of plumage. This individual has white underparts and tail and a clear trailing edge on the open wing but signs of immaturity in the coverts and tertials.

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