Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. | Parnassia, Kennemerduinen | 3 | 6 October 2018 | ||
| 2. | Parnassia, Kennemerduinen | 3 | 13 October 2018 | ||
| 3. | Parnassia, Kennemerduinen | 1 | 20 September 1998 | ||
| 4. | Parnassia, Kennemerduinen | 1 | 28 September 2014 | ||
| 5. | Parnassia, Kennemerduinen | 1 | 12 October 2014 | ||
| 6. | Parnassia, Kennemerduinen | 1 | 13 October 2014 | ||
