Black-headed Gull Chroicocephalus ridibundus(last update: |
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Moderators: BHG 1cy May BHG 2cy January BHG adult January |
Black-headed Gull - Adult JanuaryThis section deals with adult Black-headed Gulls in the month of January. Introduction Partial moult into summer plumage (head and body) usually takes place December to April, but majority January to March. Moult starts with surrounding dark head-stripes. Hindneck generally first, forehead and chin latest. From June on, hood becomes gradually paler and duller. Adult summer plumage is characterized as follows:
Most of the description follows:
| Third-calendar year individuals |
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Black-headed Gull 3cy V-S. January 26, 2013, Arnhem, The Netherlands (12.981N 05.915E) Photo: Jeroen Nagtegaal. |
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Individuals older than 3rd-calendar year | |||
Black-headed Gull adult Helsinki ST228658. January 1, 2011, Haven, Leiden, The Netherlands (52.161N, 4.500E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult Bruxelles 5T77922. January 1, 2011, Haven, Leiden, The Netherlands (52.161N, 4.500E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult TC69. January 1, 2010, Buitenhoflaan, Leiderdorp, The Netherlands (52.167N, 4.528E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult LBP. January 19, 2010, Zijlpoort, Leiden, The Netherlands (52.161N, 4.504E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult E5RE. January 22, 2011, Buitenhoflaan, Leiderdorp, The Netherlands (52.167N, 4.528E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult LEK. January 22, 2011, Leiden, The Netherlands (52.153N, 4.498E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult Arnhem 3618180 January 22, 2011, Leiden, The Netherlands (52.153N, 4.498E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adults January 22, 2011, Zijlpoort, Leiden, The Netherlands (52.161N, 4.504E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult Arnhem 3618174 January 25, 2011, Maresingel, Leiden, The Netherlands (52.164, 4.498E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult Arnhem 3618185 January 29, 2011, Leiden, The Netherlands (52.153N, 4.498E). Photo: Maarten van Kleinwee. |
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Black-headed Gull adult LWA. January 30, 2011, Westerpark, Amsterdam, The Netherlands (52.387N, 4.877E) Photo: Maarten van Kleinwee. |
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Black-headed Gull adult Arnhem 3584343 January 30, 2011, Westerpark, Amsterdam, The Netherlands (52.387N, 4.877E) Photo: Maarten van Kleinwee. |
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Black-headed Gull adult Helsinki ST251.980 January 30, 2010, Buitenhoflaan, Leiderdorp, The Netherlands (52.167N, 4.528E). Photo: Maarten van Kleinwee. |
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Black-headed Gull 3cy V-S with dark wing markings. November 29 2012, Arnhem, The Netherlands (12.981N 05.915E) Photo: Jeroen Nagtegaal. |
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