Several c-ringed Oystercatchers were present too in the vicinty of the gull colonies.
Herring gull yellow 5T (R.-J. Buijs), ringed as a chick there in 2007.
LBBG blue 29 (R.-J. Buijs).
Herring gull blue D.A (R.-J. Buijs), one of the birds that had been caught only 2 weeks before this observation.
LBBG black FL (R.-J. Buijs), ringed there as a chick in 2008.
LBBG white J.5 (R.-J. Buijs).
Herring gull yellow NX (R.-J. Buijs).
All these Oystercatchers were locally ringed. The last 2 birds were new ones to me.