IJmuiden Project - Fred Cottaar, José Verbeek, Maarten van Kleinwee & Mars Muusse

(last update: January 01, 2023)

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Y.BWD
NLA x.xxx.xxx
Lesser B-backed Gull
sex?, pullus
ringed: June 29 2015
Forteiland IJmuiden, -
 
Relations:
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Lesser Black-backed Gull (graellsiiY.BWD 1CY & 8CY, 2015 & 2022, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee, Mars Muusse & Thijs Horst.

Ringed as pullus in season 2015 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.

Continental graellsii from this population are also referred to as 'Dutch intergrade', upperparts between medium grey British graellsii and dark grey Scandinavian intermedius.

below: Lesser Black-backed Gull (graellsiiY.BWD 8CY, September 20 2022, IJmuiden, the Netherlands. Picture: Thijs Horst.

below: Lesser Black-backed Gull (graellsiiY.BWD 8CY, September 02 2022, IJmuiden, the Netherlands. Picture: Mars Muusse.

below: Lesser Black-backed Gull (graellsiiY.BWD 1CY, August 02 2015, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

Juvenile plumage missing some upper scaps. At the beach.

below: Lesser Black-backed Gull (graellsiiY.BWD 1CY, June 29 2015, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.

Juvenile, processed when ringed.