Herring Gull Larus argentatus |
1cy (first-winter) November 2015
2cy (first-winter) February 2018
2cy (second-winter) November 2017
3cy (second-winter) January 2013
3cy (second-summer), June 2022
3cy (third-winter), December 2006
Adult, winter plumage, December 2006
Differing timing for loss of winter head-streaking in a pair of Herring Gulls
Herring Gulls with dark mantle and white head: YLG 'lookalikes'
Northern argentatus with extensive white in primaries
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