Eye close-ups of adult Herring Gulls and Lesser Black-backed Gulls – 20200529
IJmuiden Lesser Black-backed Gull GPS-project update: more adults fitted with loggers
Visit to the gull colony of IJmuiden – 20200511
Lesser Black-backed Gull Green YBJB primary pattern update – 2020
IJmuiden Lesser Black-backed Gull GPS-project update: juveniles on their way back and adults in the media
Marked Birds Database – Version 2.8.0 available
IJmuiden Lesser Black-backed Gull GPS-project update: return of more adults
IJmuiden Lesser Black-backed Gull GPS-project update: adult migration routes 2019 – 2020
IJmuiden Lesser Black-backed Gull GPS-project update: daily routines of returning adults
IJmuiden Lesser Black-backed Gull GPS-project update: website live & returning adults
