Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

Great Black-backed Gull (Larus marinus) 4cy JTU1 September 24 2004, IJmuiden, the Netherlands (52.27 N, 4.33 E). 

CR-Code Dark blue ring with white code: JTU1 LBBW(JTU1);RBM
Ringing Centre Stavanger Museum (Norway) Ring number 389226
Species Great Black-backed Gull  Larus marinus
Sex Unknown Age Pullus Date 27.06 2001 (--:--) Accurate to the day
Place Steinsøy, Mandal, Vest-Agder, Norway - 57°59'47"N 007°23'57"E
Condition Alive and probably healthy and released by a ringer
Ringer(s) Bentsen, Thomas -

Ringed in Norway and not fully adult. P7 fully grown, no old primaries left. In all respects an adult bird, but note also the black markings on the bill and the brownish old inner wing-coverts.