Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)


LBBG rings

lbbg 1cy May
lbbg 1cy June
lbbg 1cy July
lbbg 1cy August
lbbg 1cy September
lbbg 1cy October
lbbg 1cy November
lbbg 1cy December

lbbg 2cy January
lbbg 2cy February
lbbg 2cy Mar-April
lbbg 2cy May
lbbg 2cy June
lbbg 2cy July
lbbg 2cy August
lbbg 2cy September
lbbg 2cy October
lbbg 2cy Nov - Dec

lbbg 3cy Jan-April
lbbg 3cy May
lbbg 3cy June
lbbg 3cy July
lbbg 3cy August
lbbg 3cy September
lbbg 3cy October
lbbg 3cy Nov - Dec

lbbg sub-ad Jan-April
lbbg sub-ad May
lbbg sub-ad June
lbbg sub-ad July
lbbg sub-ad Aug
lbbg sub-ad Sept
lbbg sub-ad Oct
lbbg sub-ad Nov
lbbg sub-ad Dec

lbbg adult January
lbbg adult February
lbbg adult March
lbbg adult April
lbbg adult May
lbbg adult June
lbbg adult July
lbbg adult August
lbbg adult September
lbbg adult October
lbbg adult Nov - Dec

4 images: LBBG 3cy C00June 18 2005, Amsterdam, the Netherlands. Pictures Ruud Altenburg. 

3cy graellsii, ringed at Europoort, Rotterdam (51.57N 04.06E) on June 26, 2003. This bird has a complete third generation tail and has replaced many wing coverts and all tertials. Age of secondaries and inner primaries is best judged in stretching and preening birds. C00 shows 25-50% third generation secondaries. In these pictures, some are visible protruding beyond the greater coverts. P1 is new (not visible in this picture), P2-3 are missing and P4-10 are of second generation.