
Billy at IJsselmeer
Prunella modularis · Friesland
- counts at this location
- 1,153
- best month
- October
- period
- 1989-2026
Only bird-location combinations reported in at least 3 calendar months and with at least 5 combined counts are included.
Monthly pattern
Monthly totals
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
Other locations for this bird
- Kennemerland-ZuidNoord-Holland15,318 GBIF counts
- WaddenzeeFriesland12,251 GBIF counts
- NoordzeekustzoneNoord-Holland11,130 GBIF counts
- Meijendel & BerkheideZuid-Holland10,059 GBIF counts
- VoordeltaZeeland9,689 GBIF counts
- Noordhollands DuinreservaatNoord-Holland7,597 GBIF counts
- VeluweGelderland7,224 GBIF counts
- Westerschelde & SaeftingheZeeland5,129 GBIF counts
- RijntakkenGelderland4,994 GBIF counts
- Groote PeelNoord-Brabant4,816 GBIF counts
- GrevelingenZeeland4,200 GBIF counts
- Schoorlse DuinenNoord-Holland3,302 GBIF counts
Other birds at this location
- Barnacle GooseBranta leucopsis1,613,944 GBIF counts
- Black ShagPhalacrocorax carbo653,807 GBIF counts
- Mute SwanCygnus olor595,516 GBIF counts
- Tufted DuckAythya fuligula443,097 GBIF counts
- Black CootFulica atra437,677 GBIF counts
- Big Black-headAythya marila383,235 GBIF counts
- COSTSturnus vulgaris358,629 GBIF counts
- Black-headed GullChroicocephalus ridibundus293,493 GBIF counts
- Northern ShovelerSpatula clypeata180,781 GBIF counts
- Eurasian WigeonMareca penelope178,900 GBIF counts
- Common CurlewNumenius arquata174,200 GBIF counts
- Domesticated GeeseAnser anser152,222 GBIF counts
Data source
Counts are aggregated from open observation data supplied through GBIF. They indicate historical reporting patterns, not guaranteed current presence. Last processed: 28 July 2026.