Category Archives: hybrid YLG x LBBG

Visit to the gull colony of IJmuiden – 20190429

Request for observations of our IJmuiden gulls ringed in season 2018

Visit to the gull colony of IJmuiden – 20160411

5CY leucistic Lesser Black-backed Gull Green Y.AXL – 20150706

Presumed adult hybrid Lesser Black-backed Gull x Yellow-legged Gull Green Y.BAM – 2014