Select until 24 November
Totals Estación de Anillamiento El Chorrillo 2016 - 2025
| | Species | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Totals | Average | Newly ringed | Retraps | Year Maximum | |
| 1. | Red-legged Partridge | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 5 | 0.6 | 5 | 0 | 4 (2024) | | | | |
| 2. | Nightjar | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2023) | | | | |
| 3. | Cuckoo | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.1 | 1 | 0 | 1 (2024) | | | | |
| 4. | Turtle Dove | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2018) | | | | |
| 5. | Collared Dove | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 1 | 0 | 5 | 0.6 | 5 | 0 | 2 (2022) | | | | |
| 6. | Sparrowhawk | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 3 | 0.4 | 3 | 0 | 1 (2020) | | | | |
| 7. | Hoopoe | 0 | 0 | 5 | 2 | 0 | 0 | 0 | 3 | 3 | 1 | 14 | 1.8 | 14 | 0 | 5 (2018) | | | | |
| 8. | Kingfisher | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 4 | 0.5 | 4 | 0 | 2 (2019) | | | | |
| 9. | European Bee-eater | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0.3 | 2 | 0 | 1 (2022) | | | | |
| 10. | Wryneck | 0 | 0 | 0 | 1 | 1 | 6 | 3 | 2 | 3 | 3 | 19 | 2.4 | 19 | 0 | 6 (2021) | | | | |
| 11. | Lesser Spotted Woodpecker | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.3 | 2 | 0 | 2 (2018) | | | | |
| 12. | Golden Oriole | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 1 | 1 | 6 | 0.8 | 6 | 0 | 2 (2023) | | | | |
| 13. | Woodchat Shrike | 0 | 0 | 3 | 6 | 4 | 1 | 4 | 8 | 8 | 12 | 46 | 5.8 | 42 | 4 | 12 (2025) | | | | |
| 14. | Woodchat Shrike (spp senator) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 3 | 0.4 | 3 | 0 | 1 (2022) | | | | |
| 15. | Jay | 0 | 0 | 0 | 3 | 4 | 0 | 3 | 5 | 7 | 10 | 32 | 4 | 29 | 3 | 10 (2025) | | | | |
| 16. | Azure-winged Magpie | 0 | 0 | 7 | 17 | 14 | 6 | 13 | 10 | 8 | 24 | 99 | 12.4 | 98 | 1 | 24 (2025) | | | | |
| 17. | Crested Tit | 0 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 0 | 2 | 11 | 1.4 | 11 | 0 | 4 (2022) | | | | |
| 18. | Blue Tit | 0 | 0 | 81 | 266 | 159 | 191 | 198 | 111 | 115 | 165 | 1286 | 161 | 1111 | 175 | 266 (2019) | | | | |
| 19. | Great Tit | 0 | 0 | 112 | 257 | 182 | 230 | 174 | 90 | 118 | 224 | 1387 | 173 | 1114 | 273 | 257 (2019) | | | | |
| 20. | Wood Lark | 0 | 0 | 0 | 4 | 3 | 3 | 10 | 3 | 0 | 14 | 37 | 4.6 | 33 | 4 | 14 (2025) | | | | |
| 21. | Thekla's Lark | 0 | 0 | 2 | 1 | 4 | 1 | 5 | 4 | 5 | 11 | 33 | 4.1 | 28 | 5 | 11 (2025) | | | | |
| 22. | Crested Lark | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 3 | 0.4 | 3 | 0 | 2 (2020) | | | | |
| 23. | Swallow | 0 | 0 | 35 | 26 | 24 | 1 | 5 | 5 | 0 | 0 | 96 | 12 | 95 | 1 | 35 (2018) | | | | |
| 24. | House Martin | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 5 | 0.6 | 5 | 0 | 4 (2021) | | | | |
| 25. | Red-rumped Swallow | 0 | 0 | 6 | 1 | 28 | 2 | 5 | 1 | 0 | 0 | 43 | 5.4 | 43 | 0 | 28 (2020) | | | | |
| 26. | Cetti's Warbler | 0 | 0 | 2 | 0 | 1 | 8 | 3 | 2 | 5 | 6 | 27 | 3.4 | 23 | 4 | 8 (2021) | | | | |
| 27. | Long-tailed Tit | 0 | 0 | 3 | 23 | 8 | 29 | 15 | 19 | 16 | 22 | 135 | 17 | 120 | 15 | 29 (2021) | | | | |
| 28. | Western Bonelli's Warbler | 0 | 0 | 0 | 0 | 4 | 5 | 3 | 9 | 6 | 1 | 28 | 3.5 | 28 | 0 | 9 (2023) | | | | |
| 29. | Willow Warbler | 0 | 0 | 7 | 57 | 16 | 12 | 15 | 11 | 12 | 12 | 142 | 18 | 142 | 0 | 57 (2019) | | | | |
| 30. | Chiffchaff | 0 | 0 | 25 | 56 | 61 | 35 | 9 | 30 | 66 | 27 | 309 | 39 | 298 | 11 | 66 (2024) | | | | |
| 31. | Iberian Chiffchaff | 0 | 0 | 0 | 0 | 6 | 3 | 2 | 5 | 4 | 5 | 25 | 3.1 | 25 | 0 | 6 (2020) | | | | |
| 32. | Great Reed Warbler | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 0 | 0 | 0 | 5 | 0.6 | 5 | 0 | 2 (2020) | | | | |
| 33. | Sedge Warbler | 0 | 0 | 0 | 2 | 10 | 11 | 10 | 20 | 3 | 15 | 71 | 8.9 | 70 | 1 | 20 (2023) | | | | |
| 34. | Reed Warbler | 0 | 0 | 34 | 206 | 398 | 391 | 272 | 243 | 346 | 370 | 2260 | 283 | 2220 | 40 | 398 (2020) | | | | |
| 35. | Melodious Warbler | 0 | 0 | 2 | 13 | 11 | 12 | 6 | 34 | 11 | 27 | 116 | 15 | 116 | 0 | 34 (2023) | | | | |
| 36. | Savi's Warbler | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2023) | | | | |
| 37. | Grasshopper Warbler | 0 | 0 | 1 | 15 | 16 | 11 | 21 | 9 | 19 | 14 | 106 | 13 | 106 | 0 | 21 (2022) | | | | |
| 38. | subalpine warbler sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 11 | 0 | 14 | 1.8 | 14 | 0 | 11 (2024) | | | | |
| 39. | Blackcap | 0 | 0 | 341 | 496 | 782 | 819 | 695 | 681 | 571 | 482 | 4867 | 608 | 4774 | 93 | 819 (2021) | | | | |
| 40. | Garden Warbler | 0 | 0 | 5 | 46 | 72 | 53 | 80 | 101 | 57 | 68 | 482 | 60 | 480 | 2 | 101 (2023) | | | | |
| 41. | Western Orphean Warbler | 0 | 0 | 4 | 33 | 21 | 42 | 30 | 48 | 23 | 62 | 263 | 33 | 256 | 7 | 62 (2025) | | | | |
| 42. | Sardinian Warbler | 0 | 0 | 29 | 116 | 125 | 160 | 138 | 105 | 116 | 153 | 942 | 118 | 833 | 109 | 160 (2021) | | | | |
| 43. | Western Subalpine Warbler | 0 | 0 | 0 | 1 | 2 | 12 | 9 | 6 | 0 | 16 | 46 | 5.8 | 46 | 0 | 16 (2025) | | | | |
| 44. | Whitethroat | 0 | 0 | 3 | 94 | 60 | 113 | 82 | 81 | 34 | 58 | 525 | 66 | 519 | 6 | 113 (2021) | | | | |
| 45. | Spectacled Warbler | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | | | | |
| 46. | Dartford Warbler | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 3 | 0.4 | 3 | 0 | 1 (2022) | | | | |
| 47. | Firecrest | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 4 | 0.5 | 4 | 0 | 2 (2022) | | | | |
| 48. | Wren | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 4 | 0 | 0 | 9 | 1.1 | 7 | 2 | 5 (2021) | | | | |
| 49. | Short-toed Tree Creeper | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 5 | 0.6 | 5 | 0 | 5 (2021) | | | | |
| 50. | Spotless Starling | 0 | 0 | 2 | 5 | 0 | 2 | 31 | 4 | 0 | 0 | 44 | 5.5 | 44 | 0 | 31 (2022) | | | | |
| | Species | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Totals | Average | Newly ringed | Retraps | Year Maximum | |
| 51. | Song Thrush | 0 | 0 | 6 | 14 | 22 | 20 | 47 | 13 | 7 | 6 | 135 | 17 | 134 | 1 | 47 (2022) | | | | |
| 52. | Redwing | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2021) | | | | |
| 53. | Blackbird | 0 | 0 | 73 | 335 | 387 | 178 | 678 | 192 | 68 | 45 | 1956 | 245 | 1844 | 112 | 678 (2022) | | | | |
| 54. | Ring Ouzel | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | | | | |
| 55. | Spotted Flycatcher | 0 | 0 | 0 | 1 | 4 | 4 | 5 | 5 | 4 | 11 | 34 | 4.3 | 34 | 0 | 11 (2025) | | | | |
| 56. | Robin | 0 | 0 | 40 | 44 | 150 | 160 | 131 | 118 | 78 | 75 | 796 | 100 | 707 | 89 | 160 (2021) | | | | |
| 57. | Nightingale | 0 | 0 | 2 | 10 | 8 | 22 | 16 | 18 | 8 | 37 | 121 | 15 | 113 | 8 | 37 (2025) | | | | |
| 58. | Pied Flycatcher | 0 | 0 | 1 | 11 | 2 | 1 | 23 | 14 | 5 | 70 | 127 | 16 | 125 | 2 | 70 (2025) | | | | |
| 59. | Black Redstart | 0 | 0 | 2 | 3 | 1 | 0 | 0 | 1 | 1 | 6 | 14 | 1.8 | 12 | 2 | 6 (2025) | | | | |
| 60. | Redstart | 0 | 0 | 6 | 25 | 22 | 25 | 22 | 19 | 9 | 62 | 190 | 24 | 190 | 0 | 62 (2025) | | | | |
| 61. | Stonechat | 0 | 0 | 3 | 5 | 5 | 3 | 2 | 2 | 0 | 0 | 20 | 2.5 | 20 | 0 | 5 (2019) | | | | |
| 62. | Spanish Sparrow | 0 | 0 | 36 | 432 | 455 | 341 | 603 | 138 | 144 | 95 | 2244 | 281 | 2178 | 66 | 603 (2022) | | | | |
| 63. | House Sparrow | 0 | 0 | 5 | 8 | 19 | 4 | 3 | 0 | 0 | 0 | 39 | 4.9 | 35 | 4 | 19 (2020) | | | | |
| 64. | Dunnock | 0 | 0 | 1 | 5 | 10 | 7 | 15 | 8 | 0 | 1 | 47 | 5.9 | 45 | 2 | 15 (2022) | | | | |
| 65. | Yellow wagtail sp. | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | | | | |
| 66. | Grey Wagtail | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 5 | 0.6 | 5 | 0 | 2 (2025) | | | | |
| 67. | Meadow Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2022) | | | | |
| 68. | Tree Pipit | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2019) | | | | |
| 69. | Chaffinch | 0 | 0 | 62 | 133 | 82 | 145 | 214 | 258 | 212 | 599 | 1705 | 213 | 1621 | 84 | 599 (2025) | | | | |
| 70. | Brambling | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0.3 | 2 | 0 | 1 (2023) | | | | |
| 71. | Hawfinch | 0 | 0 | 37 | 67 | 17 | 15 | 28 | 23 | 29 | 38 | 254 | 32 | 234 | 20 | 67 (2019) | | | | |
| 72. | Greenfinch | 0 | 0 | 42 | 41 | 36 | 55 | 44 | 114 | 57 | 213 | 602 | 75 | 573 | 29 | 213 (2025) | | | | |
| 73. | Linnet | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 3 | 5 | 0.6 | 5 | 0 | 3 (2025) | | | | |
| 74. | Goldfinch | 0 | 0 | 25 | 40 | 78 | 17 | 21 | 13 | 18 | 11 | 223 | 28 | 206 | 17 | 78 (2020) | | | | |
| 75. | Serin | 0 | 0 | 7 | 37 | 33 | 38 | 87 | 74 | 52 | 38 | 366 | 46 | 352 | 14 | 87 (2022) | | | | |
| 76. | Siskin | 0 | 0 | 0 | 0 | 1 | 7 | 0 | 344 | 930 | 352 | 1634 | 204 | 1520 | 114 | 930 (2024) | | | | |
| 77. | Corn Bunting | 0 | 0 | 2 | 1 | 1 | 0 | 8 | 7 | 2 | 4 | 25 | 3.1 | 25 | 0 | 8 (2022) | | | | |
| 78. | Rock Bunting | 0 | 0 | 11 | 22 | 20 | 33 | 58 | 41 | 35 | 31 | 251 | 31 | 218 | 33 | 58 (2022) | | | | |
| 79. | Cirl Bunting | 0 | 0 | 30 | 42 | 25 | 28 | 17 | 21 | 39 | 58 | 260 | 33 | 178 | 82 | 58 (2025) | | | | |
| | Species | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Totals | Average | Newly ringed | Retraps | Year Maximum | |
| |
Totals |
0 | 0 | 1106 | 3032 | 3400 | 3285 | 3880 | 3089 | 3277 | 3565 | 24634 | 3079 | 23199 | 1435 | | |
| |
Observation hours |
| | 121:30 | 195:40 | 216:15 | 197:45 | 179:25 | 205:30 | 204:50 | 229:30 | 1,550:25 | 193:48 | | | | |