Select until 20 January
Totals VRS Groenekan - Molenpolder 2017 - 2026
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| 1. | Mallard | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2021) | ||||
| 2. | Woodcock | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 3 | 0.3 | 3 | 0 | 1 (2021) | ||||
| 3. | Sparrowhawk | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 1 (2017) | ||||
| 4. | Common Buzzard | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2020) | ||||
| 5. | Barn Owl | 0 | 0 | 5 | 3 | 0 | 0 | 0 | 3 | 1 | 0 | 12 | 1.2 | 12 | 0 | 5 (2019) | ||||
| 6. | Kingfisher | 3 | 0 | 0 | 0 | 2 | 1 | 1 | 5 | 3 | 0 | 15 | 1.5 | 14 | 1 | 5 (2024) | ||||
| 7. | Lesser Spotted Woodpecker | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2019) | ||||
| 8. | Great Spotted Woodpecker | 3 | 3 | 1 | 2 | 3 | 0 | 2 | 2 | 2 | 0 | 18 | 1.8 | 16 | 2 | 3 (2017) | ||||
| 9. | Jay | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 4 | 0.4 | 4 | 0 | 1 (2017) | ||||
| 10. | Coal Tit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.2 | 2 | 0 | 2 (2025) | ||||
| 11. | Blue Tit | 120 | 92 | 184 | 70 | 151 | 178 | 96 | 107 | 214 | 8 | 1220 | 122 | 969 | 251 | 214 (2025) | ||||
| 12. | Great Tit | 129 | 95 | 156 | 54 | 107 | 161 | 117 | 105 | 200 | 6 | 1130 | 113 | 806 | 324 | 200 (2025) | ||||
| 13. | Skylark | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.1 | 1 | 0 | 1 (2025) | ||||
| 14. | Sand Martin | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 3 | 0.3 | 3 | 0 | 3 (2024) | ||||
| 15. | Swallow | 10 | 3 | 8 | 0 | 3 | 0 | 1 | 2 | 1 | 0 | 28 | 2.8 | 28 | 0 | 10 (2017) | ||||
| 16. | Cetti's Warbler | 0 | 0 | 0 | 0 | 1 | 3 | 5 | 11 | 22 | 0 | 42 | 4.2 | 31 | 11 | 22 (2025) | ||||
| 17. | Long-tailed Tit | 34 | 17 | 31 | 13 | 36 | 34 | 14 | 40 | 29 | 6 | 254 | 25 | 181 | 73 | 40 (2024) | ||||
| 18. | Yellow-browed Warbler | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2017) | ||||
| 19. | Willow Warbler | 7 | 7 | 3 | 3 | 10 | 8 | 5 | 6 | 8 | 0 | 57 | 5.7 | 52 | 5 | 10 (2021) | ||||
| 20. | Chiffchaff | 89 | 75 | 77 | 92 | 77 | 147 | 116 | 150 | 164 | 0 | 987 | 99 | 775 | 212 | 164 (2025) | ||||
| 21. | Chiffchaff (Siberian - tristis) | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | ||||
| 22. | Sedge Warbler | 14 | 1 | 2 | 4 | 6 | 6 | 12 | 12 | 16 | 0 | 73 | 7.3 | 69 | 4 | 16 (2025) | ||||
| 23. | Reed Warbler | 77 | 20 | 37 | 20 | 33 | 45 | 35 | 81 | 44 | 0 | 392 | 39 | 354 | 38 | 81 (2024) | ||||
| 24. | Marsh Warbler | 3 | 3 | 2 | 1 | 0 | 4 | 5 | 1 | 3 | 0 | 22 | 2.2 | 21 | 1 | 5 (2023) | ||||
| 25. | Icterine Warbler | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 5 | 0.5 | 5 | 0 | 2 (2024) | ||||
| 26. | Savi's Warbler | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 8 | 0.8 | 7 | 1 | 4 (2025) | ||||
| 27. | Grasshopper Warbler | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 2 (2017) | ||||
| 28. | Blackcap | 121 | 122 | 102 | 49 | 44 | 154 | 62 | 85 | 145 | 0 | 884 | 88 | 845 | 39 | 154 (2022) | ||||
| 29. | Garden Warbler | 37 | 20 | 41 | 14 | 26 | 20 | 18 | 15 | 23 | 0 | 214 | 21 | 189 | 25 | 41 (2019) | ||||
| 30. | Lesser Whitethroat | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 0.3 | 3 | 0 | 1 (2018) | ||||
| 31. | Whitethroat | 2 | 1 | 2 | 1 | 2 | 0 | 1 | 2 | 1 | 0 | 12 | 1.2 | 12 | 0 | 2 (2017) | ||||
| 32. | Firecrest | 1 | 8 | 3 | 10 | 3 | 11 | 12 | 11 | 31 | 2 | 92 | 9.2 | 73 | 19 | 31 (2025) | ||||
| 33. | Goldcrest | 1 | 10 | 15 | 4 | 1 | 0 | 12 | 13 | 28 | 1 | 85 | 8.5 | 81 | 4 | 28 (2025) | ||||
| 34. | Wren | 11 | 9 | 11 | 15 | 19 | 31 | 17 | 16 | 30 | 2 | 161 | 16 | 109 | 52 | 31 (2022) | ||||
| 35. | Short-toed Tree Creeper | 3 | 0 | 2 | 0 | 2 | 3 | 4 | 3 | 2 | 0 | 19 | 1.9 | 18 | 1 | 4 (2023) | ||||
| 36. | Song Thrush | 12 | 14 | 9 | 3 | 5 | 16 | 8 | 12 | 3 | 0 | 82 | 8.2 | 75 | 7 | 16 (2022) | ||||
| 37. | Redwing | 4 | 3 | 3 | 0 | 1 | 11 | 3 | 7 | 1 | 0 | 33 | 3.3 | 33 | 0 | 11 (2022) | ||||
| 38. | Blackbird | 19 | 11 | 14 | 7 | 15 | 26 | 15 | 16 | 24 | 1 | 148 | 15 | 129 | 19 | 26 (2022) | ||||
| 39. | Spotted Flycatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2024) | ||||
| 40. | Robin | 42 | 47 | 27 | 19 | 40 | 58 | 29 | 50 | 78 | 2 | 392 | 39 | 288 | 104 | 78 (2025) | ||||
| 41. | Bluethroat | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2022) | ||||
| 42. | Pied Flycatcher | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 4 | 0.4 | 4 | 0 | 1 (2020) | ||||
| 43. | Redstart | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 2 (2017) | ||||
| 44. | House Sparrow | 4 | 1 | 1 | 6 | 6 | 7 | 5 | 2 | 2 | 0 | 34 | 3.4 | 31 | 3 | 7 (2022) | ||||
| 45. | Dunnock | 2 | 11 | 9 | 4 | 1 | 2 | 8 | 10 | 7 | 0 | 54 | 5.4 | 38 | 16 | 11 (2018) | ||||
| 46. | Grey Wagtail | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2020) | ||||
| 47. | White Wagtail | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | ||||
| 48. | Tree Pipit | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2018) | ||||
| 49. | Water Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.1 | 1 | 0 | 1 (2025) | ||||
| 50. | Chaffinch | 2 | 7 | 1 | 3 | 8 | 8 | 6 | 5 | 31 | 0 | 71 | 7.1 | 69 | 2 | 31 (2025) | ||||
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| 51. | Brambling | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2024) | ||||
| 52. | Bullfinch | 12 | 7 | 3 | 1 | 3 | 6 | 5 | 6 | 3 | 1 | 47 | 4.7 | 33 | 14 | 12 (2017) | ||||
| 53. | Greenfinch | 8 | 2 | 2 | 2 | 1 | 0 | 1 | 9 | 5 | 0 | 30 | 3 | 28 | 2 | 9 (2024) | ||||
| 54. | Mealy Redpoll | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 5 | 0.5 | 5 | 0 | 3 (2023) | ||||
| 55. | Lesser Redpoll | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 1 | 1 | 0 | 9 | 0.9 | 9 | 0 | 5 (2023) | ||||
| 56. | Redpoll | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2023) | ||||
| 57. | Goldfinch | 4 | 3 | 2 | 0 | 2 | 2 | 3 | 0 | 6 | 0 | 22 | 2.2 | 21 | 1 | 6 (2025) | ||||
| 58. | Siskin | 0 | 0 | 1 | 0 | 0 | 4 | 3 | 2 | 9 | 0 | 19 | 1.9 | 19 | 0 | 9 (2025) | ||||
| 59. | Reed Bunting | 1 | 4 | 3 | 5 | 2 | 7 | 11 | 2 | 17 | 0 | 52 | 5.2 | 51 | 1 | 17 (2025) | ||||
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| Totals | 783 | 600 | 764 | 411 | 613 | 961 | 642 | 803 | 1166 | 29 | 6772 | 677 | 5540 | 1232 | ||||||
| Observation hours | 108:30 | 91:45 | 88:50 | 78:30 | 95:45 | 132:00 | 95:35 | 149:40 | 205:45 | 6:10 | 1,052:30 | 105:15 | ||||||||
