Bats around Amsterdam
Amsterdam, North Holland, The Netherlands
Every measure here is worked out per 5 degree square, so this covers the wider area around Amsterdam (50° to 55° latitude, 0° to 5° longitude, about 550 km across), not the city alone. Counts are shares of all bats records in the same weeks, so busier stations do not inflate them (methods).
Arrived in the last four weeks
No bats arrived here in these weeks last year, as far as the records show.
Expected in the next six weeks
No arrivals expected here in the next six weeks, going by last year.
Dates are last year's first regular records after at least six weeks away, with each species' own uncertainty on its page. Each species page can email you when it turns up.
Most recorded, last eight weeks
| Species | Records | Per 1,000 |
|---|---|---|
| Common Pipistrelle Pipistrellus pipistrellus | 39,169 | 473.0 |
| Soprano Pipistrelle Pipistrellus pygmaeus | 1,973 | 23.8 |
| Nathusius or Kuhls Pipistrelle Pipistrellus nathusii | 873 | 10.5 |
| Greater Mouse-eared Bat Myotis myotis | 741 | 8.9 |
| Western Barbastelle Barbastella barbastellus | 388 | 4.7 |
| Noctule Nyctalus noctula | 361 | 4.4 |
| Parti-coloured Bat Vespertilio murinus | 233 | 2.8 |
| Serotine Eptesicus serotinus | 152 | 1.8 |
| Northern Bat Eptesicus nilssonii | 90 | 1.1 |
| Lesser Noctule Nyctalus leisleri | 31 | 0.4 |
| Pond Bat Myotis dasycneme | 6 | 0.1 |
| Brown or Grey Long Eared Bat Plecotus auritus | 5 | 0.1 |
| Grey Long-eared Bat Plecotus austriacus | 4 | 0.0 |
How well this area is covered
Watched in 12 of the last 12 weeks for bats (enough records to count; unwatched weeks say nothing about absence). Active stations here in the last 30 days: 329 BirdWeather. Add a station to fill the gap.