A Flickr-based weblog concerning sightings of colourringed gulls, illustrated with photo's from an international group of readers and ringers.
Tuesday, June 14, 2011
Black-headed Gull - WHITE [E5AV] / black
Black-headed gull (Chroicocephalus ridibundus), >5th calendar year
Zoetermeer, Benthuizerplas, The Netherlands. June 14, 2011. W[E5AV] (Arnhem 3690367) Adult Black-headed Gull in full summer (alternate) plumage.
(Ringing date: June 8, 2009, Benthuizer Plas, Zoetermeer, The Netherlands. Sex: male. Age: unknown, older than 3rd-calendar year.)
Kokmeeuw (Chroicocephalus ridibundus), >5de kalenderjaar
Benthuizerplas, Zoetermeer, 14 juni 2011. W[E5AV] (Arnhem 3690367) Adulte Kokmeeuw in volledig zomerkleed.
(Ringdatum: 8 juni 2009, Zoetermeer, Benthuizer Plas. Geslacht: man. Leeftijd: onbekend, na 3de kalenderjaar.)