Great Black-backed Gull - marinus

Great Black-backed Gull- Grote Mantelmeeuw (marinus)

(last update: 14-2-2007)

gbbg 1cy Aug-Sept
gbbg 1cy October
gbbg 1cy November
gbbg 1cy December

gbbg 2cy January
gbbg 2cy February
gbbg 2cy March
gbbg 2cy April
gbbg 2cy May
gbbg 2cy June
gbbg 2cy July
gbbg 2cy August
gbbg 2cy September
gbbg 2cy Oct-Nov

gbbg 3cy January
gbbg 3cy February
gbbg 3cy March
gbbg 3cy April
gbbg 3cy May
gbbg 3cy June
gbbg 3cy July
gbbg 3cy August
gbbg 3cy September
gbbg 3cy October
gbbg 3cy December

gbbg sub-ad January
gbbg sub-ad February
gbbg sub-ad March
gbbg sub-ad April
gbbg sub-ad June
gbbg sub-ad July
gbbg sub-ad August
gbbg sub-ad September
gbbg sub-ad October
gbbg sub-ad November

gbbg ad Jan-April
gbbg ad June
gbbg ad July
gbbg ad August
gbbg ad September
gbbg ad October
gbbg ad November

*sub-adult: September*		*Great Black-backed Gull (Larus marinus) JTU1 near-adult:* September 24 2004, IJmuiden, the Netherlands (52.27 N - 04.33 E). Primary p7 fully grown. Ringed in Norway.
		*Great Black-backed Gull (Larus marinus) sub-adult:* September 2000, Brouwersdam, the Netherlands (51.45 N, 3.51 E). Primary p7 fully grown and p10 still present.
		*Great Black-backed Gull (Larus marinus) sub-adult:* September 17 2001, Vuurtorenvlakte, Maasvlakte, the Netherlands (51.59 N - 04.01 E). Primary p5 fully grown and p9-p10 still present.
		*Great Black-backed Gull (Larus marinus) sub-adult:* September 30 2001, Le Portel - Boulogne sur Mer, France (50.42 N - 01.34 E). Primary p9 almost fully grown and no old primaries left. Note the variegated pattern in the central tertial, faded brown greater and lesser coverts and the well-developed bill-band.