Lesser Black-backed Gull- Kleine Mantelmeeuw (graellsii & intermedius)

(last update: 16-2-2011)

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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

sub-adult: November - December

 

Last update of this page: 03-04-04 23:32

This page shows the variation of sub-adult Lesser Black-backed Gull in the months November to December.
The birds shown here are at least in 3rd winter plumage (3cy and older), at most in their 5th winter plumage. LBBG in 3cy and 4cy can look very much the same and in early winter, when the outer primaries are lost, it may be very hard to age them correctly. Those in 5cy are often recognized by and distinguished from adults by the black centres of the outer primary coverts. It has to be seen whether this feature completely rules out full-adults, since breeding LBBG in the colony (spring and summer) sometimes show this characteristic as well.
Some recently photographed sub-adults with rings show the difficulty and variation of specific ages during this sub-adult period.

juvenile LBBG, ringed in the Netherlands. LBBG 4cy AYZ December 06 2008, Madrid, Spain. Photo by Delfín González.
juvenile LBBG, ringed in the Netherlands. LBBG 4cy RKX December 14 2008, Madrid, Spain. Photo by Delfín González.
LBBG 4cy L-62188, November 26 2000, Westkapelle, the Netherlands. Ringed in Belgium.
ad LBBG in winter, ringed in Belgium.LBBG 4cy L-84565, November 20 2000, Westkapelle, the Netherlands. Primary moult score (PMS) of 44.
juvenile LBBG, ringed in the Netherlands. LBBG 4cy J37Y November 19 2006, Madrid, Spain. Photo by Delfín González.
6552jkm1.jpg (81226 bytes)Intermedius sub-adult JKM1 November 02 2002, Westkapelle, the Netherlands. Ringed in southern Norway.
juvenile LBBG in September, ringed in Norway. (73485 bytes)LBBG intermedius JZZ7 2cy-3cy-4cy, 2010-2012. Pictures Christian Pedersen, Maarten van Kleinwee & Theo Muusse.
Photo 1: LBBG sub-adult, November 26 2000, Westkapelle, the Netherlands.
Photo 2: LBBG sub-adult, November 20 2000, Westkapelle, the Netherlands.
Photo 3: LBBG sub-adult, November 26 2000, Westkapelle, the Netherlands.
Photo 4: LBBG sub-adult, November 19 2000, Westkapelle, the Netherlands.
Photo 6: LBBG sub-adult,  November 26 2000, Westkapelle, the Netherlands.
Photo 7: LBBG sub-adult,  November 19 2000, Westkapelle, the Netherlands.
Photo 8: LBBG sub-adult,  November 20 2000, Westkapelle, the Netherlands.
Photo 9: LBBG sub-adult, November 20 2000, Westkapelle, the Netherlands.
Photo 10: LBBG sub-adult, November 20 2000, Westkapelle, the Netherlands.
7622.jpg (95084 bytes)Photo 11: LBBG sub-adult, November 12 2001, Westkapelle, the Netherlands.