Black-headed Gull Chroicocephalus ridibundus

(last update: 3-03-2011)

Moderators:
Tim Audenaert
Maarten van Kleinwee

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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

Hybrids

Black-headed Gull - 2cy May

This section deals with second-calendar year Black-headed Gulls in the month of May.
1cy Black-headed Gull in July. (85237 bytes)Black-headed Gull 2cy
April 20, 2010, Starrevaart, Leidschendam, The Netherlands (52.10N 04.43E)
Photo: Maarten van Kleinwee.
1cy Black-headed Gull in July. (85237 bytes)Black-headed Gull 2cy
April 20, 2010, Starrevaart, Leidschendam, The Netherlands (52.10N 04.43E)
Photo: Maarten van Kleinwee.