Visit to the gull colony of IJmuiden – 20190315
Tag Archives: larus argentatus adult
Individual gulls observed in multiple countries
IJmuiden Forteiland gull season 2018
The ones that that didn’t make it- IJmuiden breeding season 2018
Comparison of underwing primary patterns in Dutch adult Herring Gulls and Lesser Black-backed Gulls – May/June 2018
Request for observations of our IJmuiden gulls ringed in season 2018
Adult Herring Gull Green YCHH with pseudo mirror, Thayeri pattern and suspended primary moult – 20180716
Herring Gull and Lesser Black-backed Gull portraits – May/June 2018
Herring Gull primary pattern comparison – May/June 2018
Primary pattern variation in adult Herring Gull Green YBKC from 2015 to 2018
