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

(last update: January 01, 2023)

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Y.AMS
NLA x.xxx.xxx
Lesser B-backed Gull
sex?, pullus
ringed: July 05 2010
Forteiland IJmuiden, -
 
Relations:
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Lesser Black-backed Gull (graellsiiY.AMS 4CY, June 22 2013, Noordwijk, the Netherlands. Picture Maarten van Kleinwee.

Ringed as pullus in season 2010 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team.

below: Lesser Black-backed Gull (graellsiiY.AMS 4CY, June 22 2013, Noordwijk, the Netherlands. Picture Maarten van Kleinwee.

Adult-like flight feathers but still with many immature patterned feathers. Mirror on P10. Note greater primary coverts with brown centres.