Where to see COPO
Aythya ferina · Monthly patterns and locations based on open observation data.
- locations with data
- 32
- GBIF counts
- 3,702,031
- 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
- VeluwerandmerenFlevoland2,155,583 GBIF counts
- OostvaardersplassenFlevoland504,734 GBIF counts
- GrevelingenZeeland141,497 GBIF counts
- Kennemerland-ZuidNoord-Holland124,725 GBIF counts
- OosterscheldeZeeland119,978 GBIF counts
- IJsselmeerFriesland110,241 GBIF counts
- NoordzeekustzoneNoord-Holland71,436 GBIF counts
- BiesboschNoord-Brabant54,101 GBIF counts
- WaddenzeeFriesland42,243 GBIF counts
- Noordhollands DuinreservaatNoord-Holland35,393 GBIF counts
- LauwersmeerGroningen32,158 GBIF counts
- RijntakkenGelderland30,808 GBIF counts
- ArkemheenGelderland24,608 GBIF counts
- VoordeltaZeeland19,003 GBIF counts
- Meijendel & BerkheideZuid-Holland14,343 GBIF counts
- MarkiezaatNoord-Brabant9,315 GBIF counts
- NaardermeerNoord-Holland8,925 GBIF counts
- Vlakte van de RaanZeeland7,279 GBIF counts
- VeluweGelderland7,076 GBIF counts
- Leenderbos, Groote Heide & De PlateauxNoord-Brabant6,473 GBIF counts
- Drentsche Aa-gebiedDrenthe5,102 GBIF counts
- Oostelijke VechtplassenNoord-Holland5,037 GBIF counts
- Duinen AmelandFriesland4,942 GBIF counts
- Krammer-VolkerakZuid-Holland4,011 GBIF counts
- Westerschelde & SaeftingheZeeland3,713 GBIF counts
- DwingelderveldDrenthe3,031 GBIF counts
- Polder ZeevangNoord-Holland2,991 GBIF counts
- LepelaarplassenFlevoland2,731 GBIF counts
- Duinen SchiermonnikoogFriesland1,497 GBIF counts
- Hollands DiepNoord-Brabant1,410 GBIF counts
- Zwanenwater & PettemerduinenNoord-Holland763 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 October 2026.