Lesser Black-backed Gull (graellsii & intermedius)

(last update: May 17 2015)

Lesser Black-backed Gull 5cy L-80954 October 22 2001, Westkapelle, the Netherlands.

From Belgium, ringed L-80954 Bruxelles, ringed as pullus on 11 June 1997 at Zeedijk 3-23, Brugge, Zeebrugge, Vlaams Gewest, BE (51° 19' 47 , 3° 10' 48).

Note the combination of much black on the bill, white tertials tips confined to the inner webs in the upper tertials and the more adult-like primary pattern, with a large mirror on p10 and a smaller one on p9. Interesting to know the exact age of this bird (data will be published as soon as possible).