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Caspian Gull, Barneveld - Landfill
Caught and ringed as 1cy in 2008 in Denmark, in 2009 seen in Harderwijk and now at the dump of Barneveld. The dull yellowish bill become adult-like with traces of red on the gonys. Some wing coverts...
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Lesser Black-backed Gull, Westkapelle - sea dike
4/5cy Lesser Black-backed Gull with some traces of oil on the head. Doesn't look like a full adult by the black on the gonys and dull yellow leg color.
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Lesser Black-backed Gull, Westkapelle - sea dike
Interesting individual, presumed intermedius. Note the adult like bill pattern, some dark black scapulars & greater coverts and the second generation tail feathers. Also the legs have a yellowish...
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Yellow-legged Gull, Westkapelle - sea dike
A lot of scapulars are replaced by second generation feathers, the wing-coverts and tertials are all still juvenile. Note the dark marked shins and some unclear pink markings on the bill.
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Herring Gull, Westkapelle - sea dike
2nd winter herring gull, showing lots of characters of Smithsonian Gull (Larus smithsonianus). Present at Westkapelle briefly on the morning of the 25th October. Pim Wolf and I saw this bird under...
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Caspian Gull, Westkapelle - sea dike
In every respect a very typical and beautiful 1cy Caspian Gull. This bird has replaced nearly all scapulars to second generation feathers, all other coverts are still juvenile. The coverts are...
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Caspian Gull, Westkapelle - sea dike
Foraging on the beach during sand supplention, in the same group as <a href="http://www.iesmeulmeester.nl/fotos.php?actie=foto&subcatsub=516" target="_blank">this</a> typical 1cy...
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Iceland Gull, Brouwersdam
Probably a female, note the small bill. Typical for this age are the pale brownish wash at the upperwing-coverts, primary-coverts, primaries and the rectrices. The underwing-coverts (especially the...
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Iceland Gull, Biezelingsche Ham
Interesting plumage to ageing, but I guess it's a 4th winter / 5cy. In most respect it looks like a full adult, there's only some pale brown wash on the upper-wing coverts and two dark bars at the...
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Lesser Black-backed Gull, Westkapelle - sea dike
Some scapulars are dropped en a few are moulted to second generation blackish feathers. All other coverts are still juvenile.
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Iceland Gull, Westkapelle - sea dike
Some pictures of a long-staying Iceland Gull at the sea dike of Westkapelle after an influx of Icelands Gulls in the Netherlands past winter. In the left-wing p4-p10 are old juvenile primaries and in...
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Herring Gull, Barneveld - Landfill
Pictures of an adult Baltic Herring Gull from Finland. On the first picture note the head and bill shape, the fine dark streaked head and the pale yellowish leg color. On the second and last picture...
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Herring Gull, Barneveld - Landfill
Pictures of a contrastingly patterned argentatus from Estland. Note the missing p1 in the left wing. A few inner greater coverts and upper tertials are recently replaced by new third generation...
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