Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

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LBBG rings

lbbg 1cy May
lbbg 1cy June
lbbg 1cy July
lbbg 1cy August
lbbg 1cy September
lbbg 1cy October
lbbg 1cy Nov - Dec

lbbg 2cy Jan-Febr
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 - 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

(13 images) LBBG 2cy 5.412.154 February 10 - May 11 2004, IJmuiden, the Netherlands (52.27N 04.33E).

This wintering LBBG was ringed as pullus on July 08 2003 at IJmuiden (52.28N 04.35E). Some LBBG may include substantial numbers of wing-coverts in the partial moult on the wintering grounds. Here, a more classic individual with limited moult. In the right wing: P1-P10 still juvenile, rectrices and all secondaries juvenile. greater covert #5, median covert #11 and lower lesser covert #5 are second generation. In the scapulars: upper scapulars 75-99% 2nd gen, lower scaps 1-25% 2nd gen; total scaps 50-75% 2nd gen. Some uppermost scapulars bordering the mantle are still juvenile.
In the left wing: P5 is a loose feather on February 10, and missing on February 18, Rectrices and Secondaries juvenile. Median coverts #6 & #8 and two lower lesser coverts 2nd generation.
Average moult in under-parts on flanks, upper neck, head and partially on breast. hind-neck and belly juvenile.
Tail-pattern somewhat like michahellis. By February 28 2004, one tail feather loose: R6 right side.


Febr 10 2004


Febr 18 2004


Febr 18 2004


Febr 19 2004


Febr 19 2004


Febr 19 2004


Febr 19 2004


Febr 28 2004


Febr 28 2004


March 25 2004


March 25 2004


March 25 2004


May 11 2004