Species: Mallard (Anas platyrhynchos)

YearArter/grupperLocalitiesParticipantsObservations
20201727077
20191122117150
2018110296120
201717674114
201618583113
201519286126
201414845121
201315346133
20121413878
20111373745
20101464253
20091171718
20081181524
20071131020
20061141247
200517621
20041101030
200314538
200215715
20011555
20001222
19981111
19971111
19961112
19941333336
19931222
19921567
19911111
19901667
19891899
Total16065441416