Lesser Black-backed Gull (graellsii & intermedius)

(last update: 10-2-2011)

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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 H560 November 11 2007, November 16 2008, March 15 2009, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

Ringed graellsii, ringed in N Germany in the Helgoland-Amrum colonies. These colonies fall in the transition zone between continental graellsii "Dutch intergades" and Scandinavian intermedius. PVC yellow H.560 ringed at Amrun/Norddorf, Quermarkenfeuer (54º40´N/8º 19´E) on 01 July 2007, as pullus by Sönke Martens (S.Martens at KH-Itzehoe.de).

Below: H560 November 11 2007, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

1cy. Tertials and wing-coverts juvenile. US: 1-25%, LS 0%, TOT SCAPS 1-25% 2nd gen.

Below: H560 November 16 2008, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

2cy. Scapulars, tertials and wing-coverts are a mix of adult-like grey and barred 2nd gen like feathers.

Below: H560 March 15 2009, Landfill VRSU de Colmenar Viejo, Madrid, Spain. Picture: Delfín González.

3cy. Scapulars moult has continued (probably at low pace) now resulting in a grey saddle. Tertials and wing-coverts are a bit messy, but probably no difference compared to the previous image.