Select until 20 January
Totals Vogelringgroep Bergumermeer (Friesland) 2017 - 2026
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |
| 1. | Pheasant | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | | | | |
| 2. | Woodpigeon | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2021) | | | | |
| 3. | Cormorant | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 2 (2021) | | | | |
| 4. | Sparrowhawk | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 2 (2023) | | | | |
| 5. | Common Buzzard | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 3 | 0.3 | 3 | 0 | 3 (2024) | | | | |
| 6. | Tawny Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.1 | 0 | 1 | 1 (2024) | | | | |
| 7. | Kingfisher | 2 | 2 | 2 | 5 | 1 | 7 | 14 | 13 | 8 | 0 | 54 | 5.4 | 40 | 14 | 14 (2023) | | | | |
| 8. | Great Spotted Woodpecker | 5 | 9 | 7 | 15 | 13 | 16 | 10 | 11 | 17 | 2 | 105 | 11 | 60 | 45 | 17 (2025) | | | | |
| 9. | Jay | 3 | 3 | 3 | 14 | 7 | 7 | 9 | 3 | 5 | 0 | 54 | 5.4 | 33 | 21 | 14 (2020) | | | | |
| 10. | Coal Tit | 4 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 8 | 0.8 | 8 | 0 | 4 (2017) | | | | |
| 11. | Willow Tit | 1 | 4 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 9 | 0.9 | 9 | 0 | 4 (2018) | | | | |
| 12. | Blue Tit | 93 | 97 | 98 | 188 | 180 | 334 | 278 | 165 | 346 | 2 | 1781 | 178 | 1336 | 445 | 346 (2025) | | | | |
| 13. | Great Tit | 163 | 300 | 252 | 255 | 185 | 370 | 317 | 206 | 344 | 10 | 2402 | 240 | 1693 | 709 | 370 (2022) | | | | |
| 14. | Bearded Tit | 9 | 4 | 24 | 37 | 29 | 41 | 14 | 17 | 1 | 0 | 176 | 18 | 115 | 61 | 41 (2022) | | | | |
| 15. | Swallow | 0 | 1 | 0 | 0 | 0 | 30 | 19 | 12 | 10 | 0 | 72 | 7.2 | 72 | 0 | 30 (2022) | | | | |
| 16. | Cetti's Warbler | 0 | 0 | 0 | 1 | 0 | 4 | 4 | 14 | 63 | 0 | 86 | 8.6 | 49 | 37 | 63 (2025) | | | | |
| 17. | Long-tailed Tit | 19 | 9 | 16 | 25 | 22 | 22 | 41 | 40 | 37 | 4 | 235 | 24 | 156 | 79 | 41 (2023) | | | | |
| 18. | Yellow-browed Warbler | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2017) | | | | |
| 19. | Willow Warbler | 54 | 75 | 66 | 88 | 80 | 68 | 86 | 73 | 60 | 0 | 650 | 65 | 382 | 268 | 88 (2020) | | | | |
| 20. | Chiffchaff | 37 | 113 | 81 | 114 | 72 | 129 | 194 | 130 | 230 | 0 | 1100 | 110 | 884 | 216 | 230 (2025) | | | | |
| 21. | Great Reed Warbler | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2023) | | | | |
| 22. | Sedge Warbler | 32 | 35 | 66 | 84 | 84 | 105 | 91 | 106 | 112 | 0 | 715 | 72 | 582 | 133 | 112 (2025) | | | | |
| 23. | Reed Warbler | 124 | 179 | 185 | 226 | 199 | 269 | 179 | 199 | 212 | 0 | 1772 | 177 | 1399 | 373 | 269 (2022) | | | | |
| 24. | Marsh Warbler | 11 | 21 | 32 | 30 | 29 | 37 | 27 | 25 | 33 | 0 | 245 | 25 | 195 | 50 | 37 (2022) | | | | |
| 25. | Icterine Warbler | 0 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 0.5 | 5 | 0 | 2 (2018) | | | | |
| 26. | Savi's Warbler | 6 | 1 | 8 | 8 | 19 | 19 | 30 | 24 | 12 | 0 | 127 | 13 | 107 | 20 | 30 (2023) | | | | |
| 27. | Grasshopper Warbler | 3 | 1 | 8 | 11 | 5 | 0 | 1 | 0 | 5 | 0 | 34 | 3.4 | 25 | 9 | 11 (2020) | | | | |
| 28. | Blackcap | 57 | 75 | 115 | 115 | 62 | 77 | 89 | 101 | 126 | 0 | 817 | 82 | 649 | 168 | 126 (2025) | | | | |
| 29. | Garden Warbler | 16 | 41 | 27 | 35 | 19 | 30 | 36 | 26 | 25 | 0 | 255 | 26 | 184 | 71 | 41 (2018) | | | | |
| 30. | Lesser Whitethroat | 1 | 9 | 4 | 3 | 5 | 3 | 7 | 5 | 7 | 0 | 44 | 4.4 | 43 | 1 | 9 (2018) | | | | |
| 31. | Whitethroat | 8 | 27 | 8 | 3 | 21 | 12 | 15 | 6 | 19 | 0 | 119 | 12 | 103 | 16 | 27 (2018) | | | | |
| 32. | Firecrest | 0 | 12 | 1 | 16 | 10 | 18 | 15 | 16 | 9 | 0 | 97 | 9.7 | 60 | 37 | 18 (2022) | | | | |
| 33. | Goldcrest | 7 | 17 | 26 | 57 | 17 | 21 | 63 | 57 | 59 | 0 | 324 | 32 | 195 | 129 | 63 (2023) | | | | |
| 34. | Wren | 28 | 34 | 37 | 51 | 45 | 57 | 53 | 63 | 65 | 0 | 433 | 43 | 218 | 215 | 65 (2025) | | | | |
| 35. | Nuthatch | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2017) | | | | |
| 36. | Short-toed Tree Creeper | 10 | 10 | 13 | 17 | 9 | 24 | 17 | 16 | 16 | 3 | 135 | 14 | 67 | 68 | 24 (2022) | | | | |
| 37. | Starling | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 2 (2018) | | | | |
| 38. | Song Thrush | 9 | 26 | 32 | 22 | 28 | 21 | 22 | 16 | 11 | 0 | 187 | 19 | 152 | 35 | 32 (2019) | | | | |
| 39. | Redwing | 1 | 2 | 2 | 3 | 3 | 9 | 5 | 19 | 8 | 0 | 52 | 5.2 | 52 | 0 | 19 (2024) | | | | |
| 40. | Blackbird | 43 | 60 | 42 | 80 | 109 | 141 | 111 | 110 | 97 | 6 | 799 | 80 | 443 | 356 | 141 (2022) | | | | |
| 41. | Fieldfare | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 1 | 0 | 7 | 0.7 | 6 | 1 | 3 (2024) | | | | |
| 42. | Robin | 25 | 33 | 46 | 56 | 60 | 85 | 82 | 98 | 67 | 3 | 555 | 56 | 363 | 192 | 98 (2024) | | | | |
| 43. | Thrush Nightingale | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2018) | | | | |
| 44. | Nightingale | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2017) | | | | |
| 45. | Bluethroat | 20 | 15 | 17 | 24 | 9 | 17 | 12 | 7 | 18 | 0 | 139 | 14 | 106 | 33 | 24 (2020) | | | | |
| 46. | White-spotted Bluethroat | 13 | 10 | 13 | 16 | 11 | 7 | 10 | 4 | 4 | 0 | 88 | 8.8 | 46 | 42 | 16 (2020) | | | | |
| 47. | Black Redstart | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0.2 | 2 | 0 | 2 (2024) | | | | |
| 48. | Redstart | 0 | 0 | 2 | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 9 | 0.9 | 9 | 0 | 3 (2020) | | | | |
| 49. | Whinchat | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2018) | | | | |
| 50. | Tree Sparrow | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2018) | | | | |
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |
| 51. | Dunnock | 10 | 14 | 12 | 9 | 5 | 6 | 16 | 6 | 10 | 0 | 88 | 8.8 | 65 | 23 | 16 (2023) | | | | |
| 52. | White Wagtail | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 3 | 0.3 | 3 | 0 | 1 (2018) | | | | |
| 53. | Tree Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.1 | 1 | 0 | 1 (2025) | | | | |
| 54. | Chaffinch | 4 | 10 | 6 | 12 | 26 | 19 | 10 | 19 | 32 | 5 | 143 | 14 | 122 | 21 | 32 (2025) | | | | |
| 55. | Brambling | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2018) | | | | |
| 56. | Hawfinch | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | 5 | 0.5 | 5 | 0 | 2 (2025) | | | | |
| 57. | Bullfinch | 11 | 6 | 16 | 21 | 11 | 14 | 13 | 11 | 5 | 0 | 108 | 11 | 65 | 43 | 21 (2020) | | | | |
| 58. | Greenfinch | 3 | 8 | 2 | 19 | 4 | 7 | 5 | 10 | 5 | 0 | 63 | 6.3 | 59 | 4 | 19 (2020) | | | | |
| 59. | Mealy Redpoll | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2023) | | | | |
| 60. | Lesser Redpoll | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2018) | | | | |
| 61. | Goldfinch | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 1 | 0 | 0 | 7 | 0.7 | 6 | 1 | 5 (2020) | | | | |
| 62. | Reed Bunting | 34 | 45 | 57 | 54 | 35 | 104 | 170 | 104 | 126 | 0 | 729 | 73 | 600 | 129 | 170 (2023) | | | | |
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |
| |
Totals |
869 | 1319 | 1332 | 1724 | 1424 | 2137 | 2078 | 1743 | 2211 | 35 | 14872 | 1487 | 10806 | 4066 | | |
| |
Observation hours |
97:05 | 128:30 | 124:00 | 200:50 | 241:00 | 253:25 | 237:40 | 267:40 | 246:20 | 7:30 | 1,804:00 | 180:24 | | | | |