Marked Birds Database – Version 2.5.2 (fix) available
Category Archives: Herring Gull
Larus argentatus, Larus argenteus
Preparing the Marked Birds Database for the new calendar year
How to score primary moult in gulls
Mixed breeding pair article pubished in Limosa 92.2
Final visit to the IJmuiden Forteiland colony this season – 21090826
Suspended primary moult in adult European Herring Gulls – 20190617
4cy European Herring Gull Green YCDZ – May/June 2019
Adult European Herring Gull Green YCUZ with Thayeri-pattern on P9 and P10 – 20190703
Visit to the gull colony of IJmuiden – 20190506
Visit to the gull colony of IJmuiden – 20190429
