Visit to the gull colony of IJmuiden – 20190429
Category Archives: hybrid YLG x LBBG
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
