Black-headed Gull Chroicocephalus ridibundus

(last update: 14-03-2011)

Tim Audenaert
Maarten van Kleinwee


BHG 1cy May
BHG 1cy June
BHG 1cy July
BHG 1cy August
BHG 1cy September
BHG 1cy October
BHG 1cy November
BHG 1cy December

BHG 2cy January
BHG 2cy Febuary
BHG 2cy March
BHG 2cy April
BHG 2cy May
BHG 2cy June
BHG 2cy July
BHG 2cy August
BHG 2cy September
BHG 2cy October
BHG 2cy November
BHG 2cy December

BHG adult January
BHG adult Febuary
BHG adult March
BHG adult April
BHG adult May
BHG adult June
BHG adult July
BHG adult August
BHG adult September
BHG adult October
BHG adult November
BHG adult December

Below: Second-calendar year Black-headed Gull Arnhem 3686130, January 27, 2011, Buitenhoflaan, Leiderdorp, The Netherlands (52.167N, 4.528E). Photo: Maarten van Kleinwee.

Second-calendar year Black-headed gull in first-winter plumage. All of the mantle and scapulars have been replaced by light gray, second-generation feathers. The same is true for all greater coverts except the first few inner ones, some of the lower middle coverts, and tertials #5 and #6. All other wing feathers are still the brown, first-generation feathers. As is typical for Black-headed Gulls of this age, the bill is orange with a black tip, and the legs are also orange.
Ring info: ringed June 9, 2010, Tjeukermeer (Friesland), The Netherlands. Age: pullus.