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

LBBG 2cy, August 15 2003, Westkapelle, the Netherlands.

A 2cy LBBG, with an average moult score: P8 is fully grown and there are no juvenile primaries left. It is wearing a small plastic ring (probably from a Dutch bird-nursery: NL9 A0 325 02 2. A barred individual in the wing-coverts and in the scapulars. 

In the wing-coverts, the last phase involves the central greater coverts and lesser coverts in the carpal edge. In the ordinary moult sequence, LBBG finish with about greater coverts #7-8 and the outermost lesser coverts in the upper row. As can be seen in the image, those central greater coverts have been replaced but are still slightly short. 

However, there is a strong contrast between some of these wing-coverts. A few coverts are old and abraded, e.g. the inner two median coverts. Probably, those feathers will be replaced for third generation soon. The upper tertial is missing again.