Select until 10 February
Totals Landgoed Oranjestein (Heerenveen) 2017 - 2026
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| 1. | Feral Mallard | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.5 | 2 | 0 | 2 (2025) | ||||
| 2. | Gadwall | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 3 | 0.8 | 3 | 0 | 2 (2024) | ||||
| 3. | Mallard | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.5 | 2 | 0 | 2 (2025) | ||||
| 4. | Woodcock | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 4 | 9 | 2.3 | 9 | 0 | 4 (2025) | ||||
| 5. | Sparrowhawk | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0.5 | 2 | 0 | 1 (2024) | ||||
| 6. | Barn Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 0.8 | 0 | 3 | 3 (2025) | ||||
| 7. | Kingfisher | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.3 | 1 | 0 | 1 (2023) | ||||
| 8. | Middle Spotted Woodpecker | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0.5 | 2 | 0 | 2 (2023) | ||||
| 9. | Great Spotted Woodpecker | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 7 | 19 | 0 | 30 | 7.5 | 15 | 15 | 19 (2025) | ||||
| 10. | Black Woodpecker | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 0.5 | 2 | 0 | 1 (2023) | ||||
| 11. | Green Woodpecker | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 7 | 0 | 10 | 2.5 | 10 | 0 | 7 (2025) | ||||
| 12. | Jay | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 1 | 0 | 1 (2025) | ||||
| 13. | Coal Tit | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 4 | 21 | 6 | 52 | 13 | 51 | 1 | 21 (2023) | ||||
| 14. | Crested Tit | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 3 | 0.8 | 3 | 0 | 2 (2024) | ||||
| 15. | Marsh Tit | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 4 | 0 | 16 | 4 | 12 | 4 | 9 (2024) | ||||
| 16. | Willow Tit | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 3 | 0.8 | 3 | 0 | 2 (2023) | ||||
| 17. | Blue Tit | 0 | 0 | 0 | 0 | 0 | 0 | 211 | 257 | 362 | 26 | 856 | 214 | 680 | 176 | 362 (2025) | ||||
| 18. | Great Tit | 0 | 0 | 0 | 0 | 0 | 0 | 511 | 487 | 937 | 55 | 1990 | 498 | 1427 | 563 | 937 (2025) | ||||
| 19. | Long-tailed Tit | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 15 | 5 | 0 | 27 | 6.8 | 21 | 6 | 15 (2024) | ||||
| 20. | Chiffchaff | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 5 | 1.3 | 5 | 0 | 5 (2025) | ||||
| 21. | Blackcap | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 26 | 0 | 27 | 6.8 | 27 | 0 | 26 (2025) | ||||
| 22. | Firecrest | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 7 | 12 | 0 | 34 | 8.5 | 28 | 6 | 15 (2023) | ||||
| 23. | Goldcrest | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 11 | 25 | 2 | 49 | 12.3 | 43 | 6 | 25 (2025) | ||||
| 24. | Wren | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 8 | 0 | 9 | 2.3 | 9 | 0 | 8 (2025) | ||||
| 25. | Nuthatch | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 17 | 29 | 2 | 57 | 14.3 | 32 | 25 | 29 (2025) | ||||
| 26. | Short-toed Tree Creeper | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 9 | 9 | 0 | 28 | 7 | 22 | 6 | 10 (2023) | ||||
| 27. | Song Thrush | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 5 | 1.3 | 5 | 0 | 4 (2025) | ||||
| 28. | Redwing | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 2 | 3 | 0 | 9 | 2.3 | 9 | 0 | 4 (2023) | ||||
| 29. | Blackbird | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 11 | 28 | 3 | 54 | 13.5 | 47 | 7 | 28 (2025) | ||||
| 30. | Robin | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 5 | 30 | 3 | 47 | 11.8 | 37 | 10 | 30 (2025) | ||||
| 31. | Grey Wagtail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 1 | 0 | 1 (2025) | ||||
| 32. | Chaffinch | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 16 | 32 | 3 | 67 | 16.8 | 64 | 3 | 32 (2025) | ||||
| 33. | Brambling | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 4 | 1 | 4 | 0 | 2 (2023) | ||||
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| Totals | 0 | 0 | 0 | 0 | 0 | 0 | 856 | 867 | 1583 | 104 | 3410 | 853 | 2579 | 831 | ||||||
| Observation hours | 32:15 | 44:45 | 64:05 | 6:15 | 147:20 | 36:50 | ||||||||||||||
