Final visit to the IJmuiden Forteiland colony this season – 21090826
IJmuiden Lesser Black-backed Gulls fitted with GPS-loggers – update 12 August 2019
1CY Lesser Black-backed Gull Green YCZT trip to Alkmaar – 20190728
IJmuiden Lesser Black-backed Gulls fitted with GPS-loggers – update July 2019
Lesser Black-backed Gull Green YCWU: from chick to juvenile
IJmuiden juvenile Lesser Black-backed Gulls fitted with GPS loggers – 20190717
Lesser Black-backed Gull Green YASV trip to France – 20190707
Juvenile Lesser Black-backed Gulls from the IJmuiden Forteiland colony fitted with GPS-loggers – 20190708
Suspended primary moult in adult European Herring Gulls – 20190617
IJmuiden Lesser Black-backed Gulls fitted with GPS loggers – Update June 2019
