Where to see COPO
Aythya ferina · Monthly patterns and locations based on open observation data.
- locations with data
- 32
- GBIF counts
- 3,692,107
- family
- Anatidae
The strongest months in the historical data are November, October and January.
Monthly pattern
Monthly totals
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
Locations with sufficient data
- VeluwerandmerenFlevoland2,153,581 GBIF counts
- OostvaardersplassenFlevoland504,348 GBIF counts
- GrevelingenZeeland141,418 GBIF counts
- Kennemerland-ZuidNoord-Holland123,104 GBIF counts
- OosterscheldeZeeland120,321 GBIF counts
- IJsselmeerFriesland108,893 GBIF counts
- NoordzeekustzoneNoord-Holland70,688 GBIF counts
- BiesboschNoord-Brabant53,763 GBIF counts
- WaddenzeeFriesland42,040 GBIF counts
- Noordhollands DuinreservaatNoord-Holland34,997 GBIF counts
- LauwersmeerGroningen32,630 GBIF counts
- RijntakkenGelderland30,721 GBIF counts
- ArkemheenGelderland23,605 GBIF counts
- VoordeltaZeeland18,935 GBIF counts
- Meijendel & BerkheideZuid-Holland14,335 GBIF counts
- NaardermeerNoord-Holland8,889 GBIF counts
- Vlakte van de RaanZeeland7,278 GBIF counts
- MarkiezaatNoord-Brabant7,256 GBIF counts
- VeluweGelderland7,075 GBIF counts
- Leenderbos, Groote Heide & De PlateauxNoord-Brabant6,446 GBIF counts
- Drentsche Aa-gebiedDrenthe5,101 GBIF counts
- Oostelijke VechtplassenNoord-Holland4,956 GBIF counts
- Duinen AmelandFriesland4,840 GBIF counts
- Krammer-VolkerakZuid-Holland3,935 GBIF counts
- Westerschelde & SaeftingheZeeland3,706 GBIF counts
- DwingelderveldDrenthe3,008 GBIF counts
- Polder ZeevangNoord-Holland2,987 GBIF counts
- LepelaarplassenFlevoland2,729 GBIF counts
- Duinen SchiermonnikoogFriesland1,497 GBIF counts
- Hollands DiepNoord-Brabant1,408 GBIF counts
- Zwanenwater & PettemerduinenNoord-Holland756 GBIF counts
- Veerse MeerZeeland701 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.