![Black-headed Gull Black-headed Gull](http://berksbirds.s3.amazonaws.com/2021222164043182.jpg)
Black-headed Gull
Mapledurham Lock, 22nd February 2021
ringed bird without alphanumeric leg rings
© Mike Smith
Black-headed Gull
Mapledurham Lock, 22nd February 2021
ringed bird without alphanumeric leg rings
© Mike Smith
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