
Ruff at IJsselmeer
Calidris pugnax · Friesland
- counts at this location
- 34,464
- 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-Brabant210,519 GBIF counts
- LauwersmeerGroningen181,156 GBIF counts
- OosterscheldeZeeland84,563 GBIF counts
- OostvaardersplassenFlevoland70,754 GBIF counts
- Abtskolk & De PuttenNoord-Holland41,850 GBIF counts
- ArkemheenGelderland37,225 GBIF counts
- Vlakte van de RaanZeeland24,809 GBIF counts
- Westerschelde & SaeftingheZeeland24,090 GBIF counts
- NoordzeekustzoneNoord-Holland23,602 GBIF counts
- RijntakkenGelderland22,764 GBIF counts
- Duinen Den Helder-CallantsoogNoord-Holland18,947 GBIF counts
Other birds at this location
- Barnacle GooseBranta leucopsis1,617,140 GBIF counts
- Black ShagPhalacrocorax carbo655,516 GBIF counts
- Mute SwanCygnus olor616,008 GBIF counts
- Tufted DuckAythya fuligula446,514 GBIF counts
- Black CootFulica atra446,493 GBIF counts
- Big Black-headAythya marila383,467 GBIF counts
- COSTSturnus vulgaris359,443 GBIF counts
- Black-headed GullChroicocephalus ridibundus294,663 GBIF counts
- Northern ShovelerSpatula clypeata181,723 GBIF counts
- Eurasian WigeonMareca penelope178,919 GBIF counts
- Common CurlewNumenius arquata176,115 GBIF counts
- Domesticated GeeseAnser anser171,847 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.