Great Black-backed Gull- Grote Mantelmeeuw (marinus)

(last update: 24-9-2010)

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third calendar year: September

 nos362734.jpg (86898 bytes)Great Black-backed Gull (Larus marinus) JA015 3cy: September 15 2010, Westkapelle, the Netherlands. Photo: A de Jong.
nos362734.jpg (86898 bytes)Great Black-backed Gull (Larus marinus) NOS 362734 3cy: September 24 2004, IJmuiden, the Netherlands.
Mirror on 2nd generation P10 and white 3rd generation tail.
6195.jpg (63934 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 17 2001, Bergen op Zoom, the Netherlands (51.32 N - 04.26). Two images.
Most of the coverts and scapulars are blackish now. Primary P7 is fully grown.
2602.jpg (78918 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 24 2004,  IJmuiden, the Netherlands.
Primary P7 is fully grown while P10 still has to be shed.
2607.jpg (80867 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 24 2004,  IJmuiden, the Netherlands.
Primary P7 is fully grown. White tail.
2610.jpg (76387 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 24 2004,  IJmuiden, the Netherlands.
Primary P7 is fully grown while P10 still has to be shed.
2620.jpg (78084 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 24 2004,  IJmuiden, the Netherlands.
Very immature plumage, even in the scapulars.
6454.jpg (75822 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 30 2001, Le Portel - Boulogne sur Mer, France (50.42 N - 01.34 E).
The general appearance in autumn: a dark blackish saddle created by the replaced scapulars and mantle, old variegated tertials, greater coverts and lesser coverts. The new inner median coverts are completely black.
6453.jpg (77573 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 30 2001, Le Portel - Boulogne sur Mer, France (50.42 N - 01.34 E).
Again a dark blackish saddle created by the replaced scapulars and mantle, old variegated tertials, greater coverts and lesser coverts.
6464.jpg (49974 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 30 2001, Le Portel - Boulogne sur Mer, France (50.42 N - 01.34 E).
Typical head pattern of 3cy Great Black-backed Gull.
6468.jpg (75557 bytes)Great Black-backed Gull (Larus marinus) 3cy: September 30 2001, Le Portel - Boulogne sur Mer, France (50.42 N - 01.34 E).
A few greater and median coverts have been replaced for all-black new feathers. Note the old barred and variegated upper tertials, greater, median and lesser coverts and a few abraded brown scapulars.