Black-headed Gull Chroicocephalus ridibundus

(last update: 16-03-2011)

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: Adult Black-headed Gull, October 31, 2010, Zijlpoort, Leiden, The Netherlands (52.161N, 4.504E). Photo: Maarten van Kleinwee.

Adult Black-headed Gull, with a-typical head pattern for this time of year. Unlike the regular winter (basic) pattern consisting of two bands across the head, the complete outline of the hood is visible.