Lesser Black-backed Gull (graellsii & intermedius)

(last update: 22-2-2011)

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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 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 intermedius 3cy SVS 8103331September 02 2003, Westkapelle, the Netherlands (51.58N-04.02E).

A 3cy intermedius from Sweden, ringed Stockholm 8103331, ringed as pullus on 1 July 2001 at Orust, Bohuslan, SW Sweden (58.04N 11.27E). Two weeks later, seen on 16 September 2003 at Calais, NW France (50.57N 01.50E).This individual has an average primary moult strategy, with P5 fully grown third generation primaries. The outer primaries P8-P10 are still second generation. The inner secondaries are still old, the outer secondaries were not judged well in the field. The tail-feathers are all present and very adult-like white and fresh.

The bill has black on both mandibles and the red gonydeal spot is confined to the lower mandible. The bill is pale yellow. The orbital ring is rather dark red. The white-yellow iris has no obvious speckling. There is some fine dark streaking on the crown and in the lower neck. Most scapulars and the mantle look medium grey, with a brown hue on the older upper scapulars. Most wing-coverts have the same colour, especially the median coverts, lower lesser coverts and inner greater coverts. These coverts were moulted in the early stage of complete moult cycles. The central greater coverts are missing and the second generation secondaries underneath are exposed. The legs are pale yellow.