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Species: Black-headed Gull (Chroicocephalus ridibundus)

YearArter/grupperLocalitiesParticipantsObservations
20241555
20231444
20221555
20211888
202018817
20191121217
20181151423
201719919
20161101021
20151121119
20141121229
20131111126
20121131231
2011110916
20101131213
200919911
20081171429
2007113821
2006114526
200519321
200413315
200313427
200215623
20011222
20001111
19981111
19941555
19931333
19921222
19891222
Totalt alle år1161124442