Black-headed gull

Mystery Bird: Black-headed Gull, Larus ridibundus

grrlscientist | September 18, 2009

tags: Black-headed Gull, Larus ridibundus, birds, mystery bird, bird ID quiz [Mystery bird] Black-headed gull, Larus ridibundus, photographed on Seurasaari, Helsinki, Finland. [I will identify this bird for you in 48 hours] Image: GrrlScientist, 4 July 2009 [larger view] Photographed with Canon SX100 IS: exposure time: 1/400, F-value: 4.3, ISO: 80, Focal length: 60mm. Please name at least one field mark that supports your identification. Review all mystery birds to date.

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