A Black-headed Gull that I saw last year on the 20th July at Passage House was ringed at Zwillbrocker Venn - a nature reserve in north west Germany. It was ringed as a chick in 2006 and has been seen at the same site during the breeding period pretty much every year since. My sighting is it's first away from the breeding grounds.
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Black-headed Gull - black A3S3 |
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