| Project | Visits | Observations | Individuals * |
|---|---|---|---|
| LosWrn.2007: Losse waarnemingen 2007 | 1 | 1 | 1 |
| LosWrn.2013: Losse waarnemingen 2013 | 1 | 2 | 5 |
| LosWrn.2019: Losse waarnemingen 2019 | 1 | 1 | 1 |
| LosWrn.2023: Losse waarnemingen 2023 | 1 | 1 | 2 |
| Employee | Visits | Observations | Individuals * |
|---|---|---|---|
| Erik van Beers | 4 | 5 | 9 |
| Number of sightings | 5 |
|---|---|
| Number of visits | 5 |
| Number of individuals * | 9 |