| Project | Visits | Observations | Individuals * |
|---|---|---|---|
| AMF-Wrn.nl-2009: Waarneming.nl 2009 | 1 | 1 | 61 |
| Te Velde 44: 1-41: Nachtvlinderwaarnemingen in en om Amersfoort (door Vincent van Laar & Tineke van Schijndel) | 2 | 2 | 2 |
| Employee | Visits | Observations | Individuals * |
|---|---|---|---|
| Erik van Beers | 3 | 3 | 63 |
| Number of sightings | 3 |
|---|---|
| Number of visits | 3 |
| Number of individuals * | 63 |