Comparison of underwing primary patterns in Dutch adult Herring Gulls and Lesser Black-backed Gulls – May/June 2018
Author Archives: Maarten van Kleinwee
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
1CY Hybrid Gull LBBG x YLG Green YCRK – June 2018
Herring Gull and Lesser Black-backed Gull portraits – May/June 2018
Lesser Black-backed Gull primary pattern comparison – May/June 2018
Herring Gull primary pattern comparison – May/June 2018
Lesser Black-backed Gull pair with 6 chicks – 20180611
4th-calendar year Lesser Black-backed Gull comparison – 20180518
Adult Lesser Black-backed Gull Green YBJB – 20180514
