Lesser Black-backed Gull (graellsii & intermedius)

(last update: 22-2-2011)


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

LBBG 3cy November 08 2001, Westkapelle, the Netherlands.

An individual where all 3cy features come together.

  • Very pale legs and much black on the bill, combined with a pinkish base;
  • The old coverts are extensively brown bleached;
  • New tertials show a grey base with a white tip which is confined to the inner-web. Old tertials are either brownish bleached or show a dark brown-black centre and vermiculation on the upper half;
  • Some of the recently moulted tail-feathers show black isolated spots near the centre;
  • Primaries show very small white tips, especially the outer primaries p6-p10;
  • The mirror on p10 is relatively small in size and a mirror on p9 is lacking. The p10 mirror is an isolated white spot and doesn't reach the feather edges;
  • Primary moult score is high, a score of 50, hence all the primaries are renewed and fully grown.