Where to see Big Black-head
Aythya marila · Monthly patterns and locations based on open observation data.
- locations with data
- 37
- GBIF counts
- 480,288
- family
- Anatidae
The strongest months in the historical data are February, January and March.
Monthly pattern
Monthly totals
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
Locations with sufficient data
- IJsselmeerFriesland383,235 GBIF counts
- WaddenzeeFriesland75,383 GBIF counts
- GrevelingenZeeland1,104 GBIF counts
- LauwersmeerGroningen582 GBIF counts
- OostvaardersplassenFlevoland566 GBIF counts
- OosterscheldeZeeland1,162 GBIF counts
- VoordeltaZeeland9,412 GBIF counts
- Kennemerland-ZuidNoord-Holland212 GBIF counts
- NoordzeekustzoneNoord-Holland636 GBIF counts
- Markermeer & IJmeerNoord-Holland3,210 GBIF counts
- BiesboschNoord-Brabant298 GBIF counts
- VeluwerandmerenFlevoland227 GBIF counts
- ArkemheenGelderland274 GBIF counts
- RijntakkenGelderland195 GBIF counts
- LepelaarplassenFlevoland577 GBIF counts
- Ketelmeer & VossemeerOverijssel2,006 GBIF counts
- Meijendel & BerkheideZuid-Holland36 GBIF counts
- Duinen SchiermonnikoogFriesland299 GBIF counts
- Duinen AmelandFriesland132 GBIF counts
- Krammer-VolkerakZuid-Holland37 GBIF counts
- Westerschelde & SaeftingheZeeland39 GBIF counts
- NaardermeerNoord-Holland33 GBIF counts
- Oostelijke VechtplassenNoord-Holland59 GBIF counts
- VeluweGelderland62 GBIF counts
- SneekermeergebiedFriesland26 GBIF counts
- Hollands DiepNoord-Brabant23 GBIF counts
- Noordhollands DuinreservaatNoord-Holland39 GBIF counts
- Veerse MeerZeeland18 GBIF counts
- Abtskolk & De PuttenNoord-Holland13 GBIF counts
- Duinen Goeree & Kwade HoekZuid-Holland49 GBIF counts
- Voornes DuinZuid-Holland28 GBIF counts
- Vlakte van de RaanZeeland23 GBIF counts
- Strabrechtse Heide & BeuvenNoord-Brabant13 GBIF counts
- Duinen en Lage Land TexelNoord-Holland8 GBIF counts
- Duinen TerschellingFriesland8 GBIF counts
- DwingelderveldDrenthe7 GBIF counts
- Zwanenwater & PettemerduinenNoord-Holland7 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.