Tag Archives: larus fuscus graellsii 4cy

First visit to IJmuiden Forteiland colony of 2021 season and returning birds with GPS loggers

Visit to the gull colony of IJmuiden – 20200511

Visit to the gull colony of IJmuiden – 20190506

5CY Lesser Black-backed Gull Green YBXJ with sub-adult plumage – 20190506

4th-calendar year Lesser Black-backed Gull comparison – 20180518

5CY Lesser Black-backed Gull Green YBMT with retarded plumage – 20170410

Variation in primary moult in Lesser Black-backed Gulls in January

Lesser Black-backed Gulls in the IJmuiden colony – 2015 breeding season

5CY Lesser Black-backed Gull Green YAWC – 20150615

4CY Lesser Black-backed Gulls Green Y.BDA and Green Y.BDC – 20150427