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

(last update: January 01, 2023)

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Y.BWZ
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.BWZ 3CY, May 29 2017, Heemskerk, the Netherlands. Picture: Mars Muusse.

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.BWZ 3CY, May 29 2017, Heemskerk, the Netherlands. Picture: Mars Muusse.

New tail, otherwise classic 3CY graellsii-type. P1-P2 missing.