Lesser Black-backed Gull (graellsii & intermedius)

(last update: 8-2-2011)

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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 ad January
lbbg adult February
lbbg adult Mar-April
lbbg adult May
lbbg adult June
lbbg adult July
lbbg ad August
lbbg ad September
lbbg ad October
lbbg ad Nov - Dec

L. f. graellsii 13 September 21 2008 (1cy) & 02 May 2010; 19, 26 September 2010, 03 October 2010 (3cy),
Landfill VRSU de Colmenar Viejo & Pinto
, Madrid, Spain. Picture: Delfín González.

Ringed graellsii "Dutch intergrade" from the Netherlands, ringed by Roland-Jan Buijs as pullus on 06 June 2008 at Moerdijk (Tetra Pak), Noord-Brabant, NL (5141.00 N 436.00 E).

below: 13 September 21 2008 (1cy), Landfill VRSU de Colmenar Viejo.

Some upper scapulars replaced.

below: 13 02 May 2010 (3cy), Landfill VRSU de Colmenar Viejo.

Complete moult probably started (inner primaries dropped), as is indicated by the missing central mc and llc.

below: 13 19 September 2010 (3cy), Landfill VRSU de Colmenar Viejo.

P7 fully grown, no old primaries.

below: 13 26 September 2010 (3cy), Landfill VRSU de Colmenar Viejo.

P8 fully grown.

below: 13 03 October 2010 (3cy), Landfill VRSU de Colmenar Viejo.

With intermedius or fuscus in the background.