Great Black-backed Gull - marinus

Great Black-backed Gull- Grote Mantelmeeuw (marinus)

(last update: 7-2-2011)

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: February*		Great Black-backed *Gull (Larus marinus) JA615 4cy: February 01 2011, Scheveningen, the Netherlands.* Mirror on P10, large white spots on outer primaries, but still barred greater coverts.
		*Great Black-backed Gull (Larus marinus) sub-adult:* February 04 2002, IJmuiden, the Netherlands (52.27 N, 4.33 E). In many respects this resembles an adult bird. Nevertheless, some immature features can be see as the well-developed bill-band, the brown old coverts, scapulars and especially lowest tertials.
		*Great Black-backed Gull L. marinus* 4cy**, February 09 2003, Le Portel / Boulogne-sur-Mer, France (50.42N,1.34E).
		*Great Black-backed Gull L. marinus* 4cy**, February 09 2003, Le Portel / Boulogne-sur-Mer, France (50.42N,1.34E).