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Herring Gull (Larus argentatus) Gulls, Terns and Skimmers (Laridae)
Sølvmåge Gaviota Plateada
	2051 (1 photos) 2009-04-29 Las Coloradas, Yucatán (Yuc), Mexico Subspecies: smithsonianus 2cy - 2 cycle bird. Very worn and bleached with beginning molt of back feathers. The dusky color of the forehead looks unnatural - dirt?
	2052 (3 photos) 2009-04-29 Las Coloradas, Yucatán (Yuc), Mexico Subspecies: smithsonianus 2cy - 2 cycle bird. This one is also very worn and bleached, which could suggest that it spent the whole winter down here in the strong sunlight. Some back feathers and inner primaries molted.
	2053 (2 photos) 2009-04-29 Las Coloradas, Yucatán (Yuc), Mexico Subspecies: smithsonianus 2cy - 2 cycle bird. Not as worn and bleached as 2052, but still affected by the strong sunlight I suppose. Also here it looks like the the inner primaries and some back feathers have been changed.
	1455 (2 photos) 2014-11-08 Helsingør, Sjælland, Denmark Subspecies: argentatus Adult and 1cy bird. On the adult the limited black hand and especially the p5 without any black spots are good indications of this subspecies, and not argenteus which normally has a more western distribution.
	3327 (3 photos) 2020-01-04 Mazatlán, Sinaloa, Mexico Subspecies: smithsonianus 1 cycle (2cy). Tentatively calling this a Herring Gull though the resemblance to a California Gull is big. I base this mainly on the great amount of white in the outer tail, which should be unusual for a California. And also on the obvious pale wedge in the hand which you normally don't see on a California either. However, the overall impression of the bird, structure and colors, leans more toward a California if you ask me...
	3344 (3 photos) 2020-04-01 Vinkelhuse (Tårnby), Amager, Denmark Adult. Female. Trying to repeat the success a Great Black-backed Gull had yesterday extracting a piece of bread from the same plastic bag. But of course it was empty and soon forgotten by the gull; now destined to fly to unknown places by the fresh northwestern wind. Banded with white text on blue, right leg: V.L2W Metal band left leg. Banded as a third year (3 or 4cy?) female Damhussøen, Copenhagen on 2012-02-07 (Kjeld Tommy Pedersen). Reported extensively during 2012 and 2013 from Damhussøen, and then not until this observation made from my bedroom window.
	3496 (4 photos) Same bird: 1 2020-10-25 Amager strandpark, Amager, Denmark Third calendar year. Male. This age by almost complete white underpart, extensive adult type scapulars and back feathers and still brownish worn wing coverts. V.KKA, black on yellow, right leg. Metal band on left leg. Banded as 2cy male Kastrup Havn, Amager on 2019-01-25 (Kjeld Tommy Pedersen).
	3586 (4 photos) Same bird: 1 2021-06-13 Amager Strandpark, Amager, Denmark Fourth calendar year. Male. Banded with black text, V.KKA, on yellow band, right leg, metal band left leg. Continuing bird that I first saw in October last year, and again in October this year. See 3496 and 3583. Banded as 2cy male Kastrup Havn, Amager on 2019-01-25 (Kjeld Tommy Pedersen).
	3587 (3 photos) Same bird: 1 2021-06-15 Amager Strandpark, Amager, Denmark Fourth calendar year. Male. V.KKA, black on yellow, right leg. Metal band on left leg. Banded as 2cy male Kastrup Havn, Amager on 2019-01-25 (Kjeld Tommy Pedersen).
	3604 (2 photos) 2021-09-01 Amager Strandpark, Amager, Denmark Adult. Yellowish legs as a good number of Herrings can show. Banded with black text on yellow on right leg: VCSZ. Metal band on left leg.
	3583 (3 photos) Same bird: 1 2021-09-29 Amager Strandpark, Amager, Denmark Fourth calendar year. Male. Also see 3496, same bird from last year. The plumage looking overall adult, but comparing with last years plumage, it is obviously not an adult now, but rather a 4cy bird, also because of the pale bill with extensive black, though much lesser than the year before. V.KKA, black on yellow, right leg. Metal band on left leg. Banded as 2cy male Kastrup Havn, Amager on 2019-01-25 (Kjeld Tommy Pedersen).
	3579 (1 photos) 2021-09-29 Amager Strandpark, Amager, Denmark Adult. Non-breeding. Assuming it is a complete adult, and in heavy primary molt, giving it a stump-ended profile.
	3580 (3 photos) 2021-09-29 Amager Strandpark, Amager, Denmark First calendar year. Looks rather disorganized the plumage, but the photo of the upper wing gives a good indication of a bird with uniform wing coverts and remiges, making it a first year bird.
	3581 (1 photos) 2021-09-29 Amager Strandpark, Amager, Denmark First calendar year. Typical darkish brown and uniformly looking bird.
	3582 (1 photos) 2021-09-29 Søstjernen, Amager Strand, Amager, Denmark First calendar year. Hatch year bird showing two generations of scapulars. There were several gulls around, while it was accommodating this mouthful, but none seemed interested in competing for it. Maybe because it was a big and determined bird, or perhaps the gulls in general are well fed at this spot giving them no need to fight for food.
	3626 (1 photos) 2021-10-25 Søstjernen, Amager Strand, Amager, Denmark First calendar year. A paler individual with paler bill base and molt of head and breast region. And many second generation scapulars.
	3627 (1 photos) 2021-10-25 Søstjernen, Amager Strand, Amager, Denmark First calendar year.
	3628 (1 photos) 2021-10-25 Søstjernen, Amager Strand, Amager, Denmark Second calendar year. Gray back and some scapulars and pale eye are good for this age. The whitish tips to the visible primaries indicate that they are fresh and therefore not from the juvenile cycle.