Herring Gull Larus argentatus'First cycle' Herring Gull (centre) cf 'first cycle' LBB Gull (left), West Midlands, September 2024 |
© A. R. Dean
Note more-strongly notched edges of tertials, extending right around fringes, more-variegated greater coverts and stronger bill of first cycle Herring Gull. Plumage pattern of upperparts of HG more-complex, with moult from juv to 1W feathers in progress.
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