Images of Lesser Black-backed Gulls Larus fuscus graellsii (Dutch intergrade), taken during the breeding season of 2015 (from mid-April to early July).
All ringed birds have been ringed in the colony unless stated otherwise.
Female Green YATA (front left) next to male partner Green YBCA. 20 April 2015.
Female Green YBCJ with resting gulls in the background. 20 April 2015.
Female Green YBJD flying over the colony. 27 April 2015.
Unknown adult on a rather large nest. 11 May 2015.
Female Green YAJY stepping onto her nest. 11 May 2015.
Green YBJB about to sit down on 3 eggs. 11 May 2015.
During the beginning of the breeding season a few adults were found dead. Cause of death probably heart failure. 11 May 2015.
Male Green YBHW. 27 April 2015.
Male Green YAVM with allmost fully white tips on P10. 13 April 2015.
Male Green YAJT landing while giving the landing call. 6 July 2015.
Female Green YACN. 27 April 2015.
Female Green YAJJ. Note the lack of black on P7 in the right wing. 11 May 2015.
4th-calendar year Green YBFD. 29 May 2105.
Female Green YBNV. 26 May 2105.
Female Green YAJY. 27 April 2015.
Green YAJZ. 29 June 2015.
Yes: we’re Dutch! Green YARY. 22 June 2015.
5th-calendar year Green YAWZ. 6 July 2015.
Male Green YBJW. 20 april 2015.
A striking individual with many leucistic feathers. 27 April 2015.
Male Green YAAU with young chick. 15 June 2015.
Male Green YBCU with 2 young chicks. 29 June 2015.
White N07R with 3 large young. It is one of 2 breeding Lesser Black-backed Gulls that are fitted with a Spanish Ring. 29 June 2015.
Green YBWC in full juvenile plumage. The outer primaries still need grow to full length. 6 July 2015.
Green YBXS in full juvenile plumage. The outer primaries still need grow to full length. 6 July 2015.
Juvenile Green YBZP with brother or sister. 6 July 2015.
Female Green YABU with juvenile. 6 July 2015.