A Flickr-based weblog concerning sightings of colourringed gulls, illustrated with photo's from an international group of readers and ringers.
Sunday, March 6, 2011
Black-Headed Gull - WHITE [E5FH] / black
Photo by Maarten van Kleinwee.
Black-headed gull (Chroicocephalus ridibundus), >4th calendar year
Zoetermeer, The Netherlands, Benthuizerplas. March 5, 2011. W[E5FH] (Arnhem 3693306). Adult Black-headed Gull moulting to summer plumage: the hood is about 97% complete.
(Ringing date: June 2, 2010, Benthuizer Plas, Zoetermeer, The Netherlands. Age: unknown, older than 3rd calendar year.)
Kokmeeuw (Chroicocephalus ridibundus), >4de kalenderjaar
Benthuizerplas, Zoetermeer, 5 maart 2011. W[E5FH] (Arnhem 3693306). Adulte Kokmeeuw ruiend naar zomerkleed: de kap is 97% compleet.
(Ringdatum: 2 juni 2010, Benthuizerplas, Zoetermeer. Geslacht: onbekend. Leeftijd: onbekend, na 3de kalenderjaar.)