Lesser Black-backed Gull (graellsii & intermedius)

(last update: 20-2-2011)

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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 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

L. f. graellsii CCV March - September 2008, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Pictures: Gabriel Martín & Delfín González.

Ringed 2cy graellsii from the U.K. Ringed by The Severn Estuary Gull Group, blue CCV and metal FP86877. Ringed on October 20 2007 as 1cy bird, at SGD Gloucester landfill site, near Hempsted, Gloucestershire 51.51N 02.16W.

below: 2cy CCV March 08 2008, Ciudad Real, Spain.

Scapulars replaced. All wing-coverts and tertials juvenile in left wing.

below: 2cy CCV April 19 2008, Ciudad Real, Spain.

Scapulars replaced. All wing-coverts and tertials juvenile in left wing. Not much of a difference.

below: 2cy CCV July 25 2008, Ciudad Real, Spain.

Rapid moult has taken place. Wing-covert panel replaced, with the gap in the central gc already closed. Probably the partial autumn has started in this bird, as the upper tertial and the inner gc seem to be missing.

below: CCV September 08 2008, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

Moulting into second winter plumage.
Complete moult not finished yet, and a simultaneous partial autumn moult takes place in the wing-coverts. These feathers are much more adult-like, grey.

Scapular region mix of grey and brown feathers. Several wing-coverts and tertials now replaced again in the partial autumn moult (e.g. upper tertials, inner gc). Note also the missing coverts. This partial autumn moult overlaps with the end of the complete moult (P9 fully grown, only P10 not at length).