
Ruff at IJsselmeer
Calidris pugnax · Friesland
- counts at this location
- 33,923
- best month
- April
- period
- 1985-2026
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
- BiesboschNoord-Brabant203,364 GBIF counts
- LauwersmeerGroningen171,231 GBIF counts
- OosterscheldeZeeland83,781 GBIF counts
- OostvaardersplassenFlevoland68,082 GBIF counts
- Drentsche Aa-gebiedDrenthe53,887 GBIF counts
- ArkemheenGelderland37,211 GBIF counts
- Abtskolk & De PuttenNoord-Holland34,753 GBIF counts
- Vlakte van de RaanZeeland24,449 GBIF counts
- Westerschelde & SaeftingheZeeland23,583 GBIF counts
- RijntakkenGelderland22,711 GBIF counts
- NoordzeekustzoneNoord-Holland22,418 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.