Category Archives: hybrid LBBG x YLG

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

Visit to the gull colony of IJmuiden – 20190423

Visit to the gull colony of IJmuiden – 20190329

IJmuiden Forteiland gull season 2018

1CY Hybrid Gull LBBG x YLG Green YCRK – June and July 2018

1CY Hybrid Gull LBBG x YLG Green YCRK – June 2018

4CY Presumed hybrid Lesser Black-backed Gull x Yellow-legged Gull Green YBWP – 20180409

(Presumed) Hybrid Lesser Black-backed Gull x Yellow-legged Gull Green YCMP – 2017

(Presumed) Hybrid Lesser Black-backed Gull x Yellow-legged Gull Green YCLD – 2017

Visit to the gull colony of IJmuiden – 20170410