john.grearson:
Little Gull & Black-headed Gull, Lake 74, Cotswold Water Park, Wiltshire, 18th April 2017
john.grearson:
Black-headed Gull in first-summer plumage, Lake 74, Cotswold Water Park, Wiltshire, 19th April 2017. Also feeding on flies.
john.grearson:
Black-headed Gull, in breeding plumage, feeding on surface insects, Lake 74, Cotswold Water Park, Wiltshire, 19th April 2017
john.grearson:
Black-headed Gull feeding on emerging insects, Lake 74, Cotswold Water Park, Wiltshire, 19th April 2017
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 6th March 2017. The bird with the white ring was marked in June 2013 as a pullus, about 1km away. Has been sighted at the Severn estuary twice since then.
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 6th March 2017
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 6th March 2017
john.grearson:
Adult Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
Adult Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
First-winter Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 3rd March 2017
john.grearson:
Kittiwake in Scarborough Harbour collecting nest material, Yorkshire, 21st May 2015
john.grearson:
Black-headed Gull, Slimbridge Wildfowl & Wetlands Trust, Gloucestershire, 10th January 2017
john.grearson:
Black-headed Gull, adult in winter plumage, Slimbridge Wildfowl & Wetlands Trust, Gloucestershire, 10th January 2017
john.grearson:
Herring Gull, St. Peter Port, Guernsey, Channel Isles, September 2016
john.grearson:
Herring Gull entering winter plumage, St. Peter Port, Guernsey, September 2016
john.grearson:
Adult summer-plumaged Lesser Black-backed Gull, Whitminster Garden Centre, Gloucestershire, 9th August 2016
john.grearson:
Black-headed Gull adopting summer plumage, Lake 12, Cotswold Water Park, Glos. 4th March 2016
john.grearson:
Black-headed Gull, summer plumage, Lake 12, Cotswold Water Park, Glos. 4th March 2016
john.grearson:
Black-headed Gull, adult in winter plumage, Lake 12, Cotswold Water Park, Glos., 23rd December 2015
john.grearson:
Black-headed Gull, adult in winter plumage, Lake 12, Cotswold Water Park, Glos., 23rd December 2015
john.grearson:
Black-headed Gull, first winter plumage, Lake 12, Cotswold Water Park, Glos., 23rd December 2015
john.grearson:
Black-headed Gull, first winter plumage, Lake 12, Cotswold Water Park, Glos., 23rd December 2015
john.grearson:
Black-headed Gull, adult in winter plumage, Lake 12, Cotswold Water Park, Glos., 23rd December 2015
john.grearson:
Black-headed Gull, adult in winter plumage, Lake 12, Cotswold Water Park, Glos., 23rd December 2015
john.grearson:
Black-headed Gull, Lake 12, Cotswold Water Park, Gloucestershire, 5th December 2015
john.grearson:
Black-headed Gulls, Lake 12, Cotswold Water Park, Gloucestershire, 5th December 2015
