Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. | Parnassia, Kennemerduinen | 4 | 24 September 2011 | ||
| 2. | Parnassia, Kennemerduinen | 3 | 26 August 1984 | ||
| 3. | Parnassia, Kennemerduinen | 3 | 27 August 1988 | ||
| 4. | Parnassia, Kennemerduinen | 2 | 22 September 1986 | ||
| 5. | Parnassia, Kennemerduinen | 2 | 19 September 2000 | ||
| 6. | Parnassia, Kennemerduinen | 2 | 13 September 2016 | ||
| 7. | Parnassia, Kennemerduinen | 1 | 27 August 2014 | ||
