Sandwich Tern at Duinen Vlieland
Thalasseus sandvicensis · Friesland
- counts at this location
- 153
- best month
- October
- period
- 1981-2023
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
- NoordzeekustzoneNoord-Holland948,686 GBIF counts
- WaddenzeeFriesland262,443 GBIF counts
- Westerschelde & SaeftingheZeeland189,938 GBIF counts
- GrevelingenZeeland94,063 GBIF counts
- VoordeltaZeeland93,886 GBIF counts
- OosterscheldeZeeland87,296 GBIF counts
- Vlakte van de RaanZeeland71,408 GBIF counts
- Kop van SchouwenZeeland24,422 GBIF counts
- Abtskolk & De PuttenNoord-Holland17,953 GBIF counts
- Meijendel & BerkheideZuid-Holland6,327 GBIF counts
- LauwersmeerGroningen1,774 GBIF counts
- Duinen AmelandFriesland7,545 GBIF counts
Other birds at this location
- COSTSturnus vulgaris22,954 GBIF counts
- CORETringa totanus7,632 GBIF counts
- Black-headed GullChroicocephalus ridibundus7,233 GBIF counts
- Common KnotCalidris canutus6,659 GBIF counts
- European Herring GullLarus argentatus4,243 GBIF counts
- COSHTadorna tadorna4,131 GBIF counts
- Eurasian OystercatcherHaematopus ostralegus4,022 GBIF counts
- American EiderSomateria mollissima2,883 GBIF counts
- Common CurlewNumenius arquata2,270 GBIF counts
- BrantBranta bernicla2,075 GBIF counts
- Eurasian WigeonMareca penelope1,855 GBIF counts
- Black-backed GullLarus fuscus1,685 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.