In February one of 2 yellow-legged Herring Gulls (‘Marsh Gulls’) showed a couple of times on Shirecliff Tip, near my home. While we were at Rainham yesterday, Steve Arlow had this yellow-legged argentatus Herring Gull over at Pitsea. You can see the metal ring (just) on the right leg. Blimey- a ring! A ringed bird at Walthamstowe a bunch of years ago was (not surprisingly) mis-identified as a Yellow-legged Gull (michahellis) before it was found dead and the ring said Finnish argentatus). These yellow-legged birds tend also to have a bit more black in the wing and vivid red orbital rings (duller orange on other argentatus). Steve takes great pics doesn’t he?
old name ‘Marsh Gull’, aka yellow-legged argentatus, Pitsea, Essex, 5th March 2011, Steve Arlow. see: