Herring Gull- Zilvermeeuw (argentatus & argenteus)
(last update:
Herring Gull plumages:
hg 1cy July
hg 1cy August
hg 1cy September
hg 1cy October
hg 1cy November
hg 1cy December
hg 2cy January
hg 2cy February
hg 2cy March
hg 2cy April
hg 2cy May
hg 2cy June
hg 2cy July
hg 2cy August
hg 2cy September
hg 2cy October
hg 2cy November
hg 2cy December
hg 3cy January
hg 3cy February
hg 3cy March
hg 3cy April
hg 3cy May
hg 3cy June
hg 3cy July
hg 3cy August
hg 3cy September
hg 3cy October
hg 3cy November
hg 3cy December
hg sub-ad January
hg sub-ad February
hg sub-ad March
hg sub-ad April
hg sub-ad May
hg sub-ad June
hg sub-ad July
hg sub-ad August
hg sub-ad September
hg sub-ad October
hg sub-ad November
hg sub-ad December
hg ad January
hg ad February
hg ad March
hg ad April
hg ad May
hg ad June
hg ad July
hg ad August
hg ad September
hg ad October
hg ad November
hg ad December
Herring Gull 4cy (argenteus) H-112084, May 03 2003, Voorhaven, Zeebrugge, Belgium (51.59N 04.02E).
Ringed as pullus on July 14 2000 at Zeebrugge, Belgium (51.20N 03.11E). A 4cy argenteus with a grey saddle and some grey median coverts. The second generation outer primaries are bleached brown without white tips and lack a mirror on P10. 3cy argenteus has a partial moult in spring. It starts in January and is completed by April, leaving birds in so-called "second summer" plumage. By May, the head is white, especially on throat, breast and belly. The iris and base of the bill turn pale yellow, although some individuals show a warm amber iris. The bill shows some red on the gonydeal angle and it still shows an obvious dark bill-band.
