Herring Gull- Zilvermeeuw (argentatus & argenteus)

(last update: 30-9-2009)

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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 (argenteus) L.P 1CY, 2CY, 3CY, 5CY, September 17 2013 - January 2017, Katwijk - Scheveningen, the Netherlands.

Tibia B-LP and metal Arnhem NLA 6.173.864, ringed as pullus on July 01 2013 at Europoort (Beneluxhaven), the Netherlands (NL 5157.00 N 408.00 E).

Recoveries:
27-8-2013 Zandmotor (Strand), Zuid-Holland, NL 5.203,00 N 411,00 E colourring read N.Huig & R. van Oosteroom
28-8-2013 Den Haag (Haagse Mart), Zuid-Holland, NL 5.203,00 N 418,00 E colourring read N.Huig & R. van Oosteroom
29-8-2013 Zandmotor (Strand), Zuid-Holland, NL 5.203,00 N 411,00 E colourring read N.Huig & R. van Oosteroom
4-9-2013 Den Haag (Zuiderpark), Zuid-Holland, NL 5.203,00 N 417,00 E colourring read Leo Snellink
17-9-2013 Katwijk aan Zee (Strand), Zuid-Holland, NL 5.213,00 N 424,00 E colourring read Frank van der Meer & Mars Muusse
23-9-2013 Den Haag (Haagse Mart), Zuid-Holland, NL 5.203,00 N 418,00 E colourring read N.Huig & R. van Oosteroom
24-9-2013 Den Haag (Troelstrakade), Zuid-Holland, NL 5.203,00 N 417,00 E colourring read N.Huig & R. van Oosteroom
30-1-2014 Katwijk aan Zee (Strand), Zuid-Holland, NL 5.213,00 N 424,00 E colourring read Mars Muusse
5-6-2014 Den Haag (Veenendaalkade), Zuid-Holland, NL 5.203,00 N 416,00 E colourring read Leo Snellink
24-6-2014 Hoek van Holland (Strand), Zuid-Holland, NL 5.159,00 N 406,00 E colourring read Ted van der Knaap
6-9-2014 Scheveningen (Havens en Havenhoofden), Zuid-Holland, NL 5.206,00 N 416,00 E colourring read Rob Berkelder
10-9-2014 Scheveningen (Havens en Havenhoofden), Zuid-Holland, NL 5.206,00 N 416,00 E colourring read Roland Wantia
11-9-2014 Scheveningen (Havens en Havenhoofden), Zuid-Holland, NL 5.206,00 N 416,00 E colourring read Norman D. van Swelm
25-9-2014 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Rinse van der Vliet
18-10-2014 Kijkduin (Strand), Zuid-Holland, NL 5.203,00 N 413,00 E colourring read M. van Kleinwee & C. Walta
31-10-2014 Petten (Hondsbossche Zeewering), Noord-Holland, NL 5.245,00 N 439,00 E colourring read Dook Vlugt
8-11-2014 Europoort (Wezerhaven), Zuid-Holland, NL 5.155,00 N 411,00 E colourring read E. Eijkelenboom & H. Keijser
4-1-2015 Zandmotor (Strand), Zuid-Holland, NL 5.203,00 N 411,00 E colourring read Caroline Walta
21-1-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Merijn Loeve
22-1-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Leo Snellink & Rinse van der Vliet
23-1-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read M. van Kleinwee & C. Walta
5-2-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read August van Rijn & M. van Kleinwee & C. Walta
7-2-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read André Leegwater & Cornelis Fokker & Merijn Loeve & Rinse van der Vliet
13-2-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Leo Snellink
15-2-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read André Leegwater & M. van Kleinwee & C. Walta
17-3-2015 Den Haag (Troelstrakade), Zuid-Holland, NL 5.203,00 N 417,00 E colourring read N.Huig & R. van Oosteroom
21-3-2015 Den Haag (Troelstrakade), Zuid-Holland, NL 5.203,00 N 417,00 E colourring read N.Huig & R. van Oosteroom
5-4-2015 Den Haag (Troelstrakade), Zuid-Holland, NL 5.203,00 N 417,00 E colourring read N.Huig & R. van Oosteroom
18-4-2015 Bergen aan Zee (Strand), Noord-Holland, NL 5.239,00 N 437,00 E colourring read Cornelis Fokker
28-7-2015 Oost-Vlieland (Wadkant Westerse Veld), Friesland, NL 5.317,00 N 503,00 E colourring read Peter de Boer
15-8-2015 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Leo Snellink
18-8-2015 Den Haag (Neherkade), Zuid-Holland, NL 5.203,00 N 419,00 E colourring read N.Huig & R. van Oosteroom
19-8-2015 Den Haag (Neherkade), Zuid-Holland, NL 5.203,00 N 419,00 E colourring read N.Huig & R. van Oosteroom
26-8-2015 Den Haag (Neherkade), Zuid-Holland, NL 5.203,00 N 419,00 E colourring read N.Huig & R. van Oosteroom
31-8-2015 Den Haag (Neherkade), Zuid-Holland, NL 5.203,00 N 419,00 E colourring read N.Huig & R. van Oosteroom
2-10-2015 Den Haag (Neherkade), Zuid-Holland, NL 5.203,00 N 419,00 E colourring read N.Huig & R. van Oosteroom
9-10-2015 Den Haag (Neherkade), Zuid-Holland, NL 5.203,00 N 419,00 E colourring read N.Huig & R. van Oosteroom
3-5-2016 Hoek van Holland (Strand), Zuid-Holland, NL 5.159,00 N 406,00 E colourring read Ted van der Knaap
19-7-2016 Zandmotor (Strand), Zuid-Holland, NL 5.203,00 N 411,00 E colourring read Merijn Loeve
31-10-2016 Noordwijk aan Zee (Strand), Zuid-Holland, NL 5.214,00 N 425,00 E colourring read Hein Verkade
24-1-2017 Scheveningen (Strand), Zuid-Holland, NL 5.206,00 N 415,00 E colourring read Mars Muusse

below: Gull (argenteus) 1cy L.P September 17 2013, Katwijk, the Netherlands.

US=1-25%, LS=0%, TOT SCAPS=1-25%.

The partial autumn moult in argenteus (moult from juvenile plumage into so-called "first winter" plumage) includes the scapulars, body and head feathers. This moult starts as soon as the nest is abandoned (late June) and continues until January. In general, the head turns paler on throat and forehead. The breast will turn paler as well. The feathers on belly and vent will still be juvenile in most 1cy argenteus by November. From July onwards, juveniles replace the mantle and upper scapulars, moulted to second generation feathers, showing an anchor pattern and a dark base. The lowest row of scapulars are still juvenile by March in most 2cy birds from northern origin (contra e.g. michahellis).

The notched pattern of the juvenile scapulars is repeated on the juvenile lesser, lower lesser and median coverts, although the medians have paler centres. The juvenile greater coverts show a 'piano-key' pattern; on the outer greater coverts as well. The tertials have an obvious notched pale fringe and transversal bar. 
The juvenile wing-coverts, rectrices and remiges start to bleach and show wear in the fringes from September onwards. The secondaries, primaries and primary coverts are dark with a small white tip, but the juvenile inner primaries show an obvious pale window, prominent from below and above. The under-wing is rather uniform grey-brown patterned. The tail has a broad sub-terminal band and isolated dark bars on the basal half. The iris is dark, the bill is blackish, sometimes with a paler base, and the legs are flesh-pink.

below: Herring Gull (argenteus) L.P 2CY, January 30 2014, Katwijk, the Netherlands.

Scapulars replaced. Note how the pale parts on coverts have worn away over the last 6 months.

below: Herring Gull argenteus L.P 3CY, February 13 2015, Scheveningen, the Netherlands. Picture: Merijn Loeve.

2nd gen flight feathers. Almost complete grey saddle. pale iris.

below: Herring Gull (argenteus) L.P 5CY, January 24 2017, Scheveningen, the Netherlands.

Adult-like plumage.