Herring Gull- Zilvermeeuw (argentatus & argenteus)
Herring Gull plumages:
hg sub-ad January
Herring Gull 3cy V3T3 (argentatus), October 28 2004, Westkapelle, the Netherlands (51.33N-03.25E). Picture Pim Wolf.
A bird with a Danish ring: yellow V3T3. Primaries P1-P9 are fully grown. Most of the wing-coverts show an obvious brown hue and are worn at the fringes. The upper tertial, two inner greater coverts and two inner median coverts are replaced once again in the partial autumn moult.
From June to October, a complete moult
will bring 3cy argenteus in so-called "third winter" plumage.
By October, when the complete moult is finished,
the head will show extensive 'winter streaking', mottled brown contrasting
with the white breast as in an executioner's hood. The scapulars and
mantle are pale adult-like grey.