| Project | Visits | Observations | Individuals * |
|---|---|---|---|
| AMF-Wrn.nl-2009: Waarneming.nl 2009 | 1 | 1 | 1 |
| Te Velde 44: 1-41: Nachtvlinderwaarnemingen in en om Amersfoort (door Vincent van Laar & Tineke van Schijndel) | 10 | 10 | 11 |
| Employee | Visits | Observations | Individuals * |
|---|---|---|---|
| Erik van Beers | 11 | 11 | 12 |
| Number of sightings | 11 |
|---|---|
| Number of visits | 11 |
| Number of individuals * | 12 |