Totals Jacobssteeg, De Bilt 2020
| Year | |
| Period | |
| count-field | |
| Also present | |
| Species | Jul | Aug | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Canada Goose | 0 | 0 | 5 | 4 | 0 | 9 | 9 | 0 | 4 (17 Oct) | 6 | 3 | 2 Sep | 17 Oct | ||||
| 2. | Greylag Goose | 13 | 246 | 924 | 3594 | 188 | 4965 | 4507 | 458 | 1200 (14 Oct) | 77 | 41 | 25 Jul | 21 Nov | ||||
| 3. | goose sp. | 0 | 0 | 0 | 1716 | 223 | 1939 | 1151 | 788 | 997 (15 Oct) | 26 | 14 | 10 Oct | 21 Nov | ||||
| 4. | Tundra Bean Goose | 0 | 0 | 0 | 6 | 93 | 99 | 99 | 0 | 60 ( 9 Nov) | 11 | 6 | 15 Oct | 18 Nov | ||||
| 5. | Eurasian White-fronted Goose | 0 | 0 | 1 | 3277 | 430 | 3708 | 3340 | 368 | 700 (14 Oct) | 40 | 21 | 30 Sep | 18 Nov | ||||
| 6. | Mute Swan | 0 | 4 | 0 | 18 | 0 | 22 | 22 | 0 | 5 ( 7 Oct) | 13 | 7 | 27 Aug | 27 Oct | ||||
| 7. | Egyptian Goose | 6 | 21 | 35 | 172 | 55 | 289 | 252 | 37 | 39 ( 4 Nov) | 45 | 24 | 15 Jul | 21 Nov | ||||
| 8. | Shoveler | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 (17 Oct) | 2 | 1 | 17 Oct | 17 Oct | ||||
| 9. | Gadwall | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 (20 Oct) | 2 | 1 | 20 Oct | 20 Oct | ||||
| 10. | Mallard | 0 | 0 | 3 | 8 | 0 | 11 | 11 | 0 | 5 (17 Oct) | 6 | 3 | 23 Sep | 17 Oct | ||||
| 11. | Pintail | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 3 Oct) | 2 | 1 | 3 Oct | 3 Oct | ||||
| 12. | duck sp. | 1 | 0 | 4 | 5 | 0 | 10 | 10 | 0 | 5 ( 7 Oct) | 8 | 4 | 15 Jul | 7 Oct | ||||
| 13. | Tufted Duck | 0 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 2 (29 Aug) | 2 | 1 | 29 Aug | 29 Aug | ||||
| 14. | Swift | 48 | 12 | 1 | 0 | 0 | 61 | 61 | 0 | 20 (20 Jul) | 15 | 8 | 15 Jul | 2 Sep | ||||
| 15. | Stock Dove | 15 | 53 | 173 | 301 | 181 | 723 | 453 | 270 | 83 ( 4 Nov) | 91 | 48 | 20 Jul | 21 Nov | ||||
| 16. | Woodpigeon | 23 | 22 | 133 | 2869 | 1832 | 4879 | 4767 | 112 | 1196 ( 4 Nov) | 89 | 47 | 15 Jul | 21 Nov | ||||
| 17. | Collared Dove | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 0 | 1 (21 Sep) | 4 | 2 | 21 Sep | 27 Oct | ||||
| 18. | Great Crested Grebe | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (31 Oct) | 2 | 1 | 31 Oct | 31 Oct | ||||
| 19. | Oystercatcher | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 2 (20 Jul) | 2 | 1 | 20 Jul | 20 Jul | ||||
| 20. | Golden Plover | 0 | 0 | 1 | 6 | 0 | 7 | 7 | 0 | 6 (28 Oct) | 4 | 2 | 30 Sep | 28 Oct | ||||
| 21. | Lapwing | 0 | 0 | 9 | 249 | 5 | 263 | 263 | 0 | 191 (14 Oct) | 21 | 11 | 12 Sep | 21 Nov | ||||
| 22. | Snipe | 1 | 1 | 40 | 23 | 4 | 69 | 62 | 7 | 11 (30 Sep) | 30 | 16 | 30 Jul | 18 Nov | ||||
| 23. | Common Sandpiper | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 ( 4 Aug) | 2 | 1 | 4 Aug | 4 Aug | ||||
| 24. | Green Sandpiper | 1 | 5 | 2 | 1 | 0 | 9 | 9 | 0 | 3 (19 Aug) | 11 | 6 | 30 Jul | 7 Oct | ||||
| 25. | wader sp. | 1 | 3 | 0 | 0 | 0 | 4 | 1 | 3 | 3 (19 Aug) | 4 | 2 | 30 Jul | 19 Aug | ||||
| 26. | Black-headed Gull | 139 | 21 | 28 | 366 | 215 | 769 | 754 | 15 | 144 ( 4 Nov) | 66 | 35 | 15 Jul | 9 Nov | ||||
| 27. | Common Gull | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 (18 Nov) | 2 | 1 | 18 Nov | 18 Nov | ||||
| 28. | Herring Gull | 0 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 1 ( 4 Aug) | 4 | 2 | 4 Aug | 24 Aug | ||||
| 29. | Lesser Black-backed Gull | 14 | 131 | 10 | 9 | 6 | 170 | 169 | 1 | 42 (27 Aug) | 49 | 26 | 15 Jul | 4 Nov | ||||
| 30. | large gull sp. | 0 | 0 | 1 | 5 | 0 | 6 | 6 | 0 | 3 (10 Oct) | 8 | 4 | 30 Sep | 22 Oct | ||||
| Species | Jul | Aug | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Cormorant | 0 | 138 | 551 | 738 | 28 | 1455 | 1435 | 20 | 298 ( 3 Oct) | 58 | 31 | 4 Aug | 18 Nov | ||||
| 32. | Great White Egret | 2 | 8 | 15 | 13 | 5 | 43 | 37 | 6 | 6 ( 5 Sep) | 26 | 14 | 25 Jul | 4 Nov | ||||
| 33. | heron sp. | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (20 Oct) | 2 | 1 | 20 Oct | 20 Oct | ||||
| 34. | Grey Heron | 2 | 2 | 13 | 9 | 0 | 26 | 25 | 1 | 7 (16 Sep) | 19 | 10 | 20 Jul | 15 Oct | ||||
| 35. | Purple Heron | 0 | 0 | 3 | 0 | 0 | 3 | 0 | 3 | 3 ( 2 Sep) | 2 | 1 | 2 Sep | 2 Sep | ||||
| 36. | Sparrowhawk | 1 | 0 | 0 | 33 | 4 | 38 | 38 | 0 | 7 (10 Oct) | 32 | 17 | 15 Jul | 9 Nov | ||||
| 37. | Marsh Harrier | 0 | 0 | 6 | 4 | 0 | 10 | 10 | 0 | 5 (16 Sep) | 9 | 5 | 16 Sep | 12 Oct | ||||
| 38. | Hen Harrier | 0 | 0 | 0 | 9 | 0 | 9 | 8 | 1 | 5 (14 Oct) | 9 | 5 | 3 Oct | 16 Oct | ||||
| 39. | Common Buzzard | 0 | 0 | 4 | 74 | 4 | 82 | 82 | 0 | 36 (15 Oct) | 17 | 9 | 17 Sep | 4 Nov | ||||
| 40. | raptor sp. | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (10 Oct) | 2 | 1 | 10 Oct | 10 Oct | ||||
| 41. | Great Spotted Woodpecker | 1 | 6 | 15 | 5 | 1 | 28 | 19 | 9 | 4 (21 Sep) | 28 | 15 | 15 Jul | 7 Nov | ||||
| 42. | Kestrel | 0 | 0 | 2 | 4 | 0 | 6 | 5 | 1 | 2 (16 Oct) | 9 | 5 | 14 Sep | 22 Oct | ||||
| 43. | falcon sp. | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 (31 Aug) | 2 | 1 | 31 Aug | 31 Aug | ||||
| 44. | Merlin | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (30 Sep) | 2 | 1 | 30 Sep | 30 Sep | ||||
| 45. | Hobby | 0 | 1 | 1 | 0 | 0 | 2 | 2 | 0 | 1 (24 Aug) | 4 | 2 | 24 Aug | 17 Sep | ||||
| 46. | Peregrine | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 0 | 1 (11 Oct) | 4 | 2 | 11 Oct | 21 Nov | ||||
| 47. | Jay | 0 | 0 | 2 | 4 | 0 | 6 | 2 | 4 | 2 (21 Sep) | 6 | 3 | 21 Sep | 22 Oct | ||||
| 48. | Magpie | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 9 Oct) | 2 | 1 | 9 Oct | 9 Oct | ||||
| 49. | Jackdaw | 0 | 2 | 11 | 56 | 22 | 91 | 89 | 2 | 22 ( 4 Nov) | 30 | 16 | 8 Aug | 4 Nov | ||||
| 50. | Carrion Crow | 4 | 14 | 22 | 49 | 4 | 93 | 93 | 0 | 6 (14 Oct) | 58 | 31 | 25 Jul | 9 Nov | ||||
| 51. | Coal Tit | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 4 Nov) | 2 | 1 | 4 Nov | 4 Nov | ||||
| 52. | Blue Tit | 2 | 11 | 47 | 106 | 19 | 185 | 179 | 6 | 40 (10 Oct) | 53 | 28 | 20 Jul | 18 Nov | ||||
| 53. | Great Tit | 0 | 0 | 17 | 21 | 0 | 38 | 38 | 0 | 7 (10 Oct) | 23 | 12 | 9 Sep | 31 Oct | ||||
| 54. | Wood Lark | 0 | 0 | 4 | 37 | 9 | 50 | 48 | 2 | 19 (10 Oct) | 19 | 10 | 30 Sep | 7 Nov | ||||
| 55. | Skylark | 0 | 0 | 3 | 1288 | 131 | 1422 | 1413 | 9 | 609 (20 Oct) | 40 | 21 | 30 Sep | 21 Nov | ||||
| 56. | Swallow | 13 | 545 | 951 | 87 | 0 | 1596 | 1561 | 35 | 186 (31 Aug) | 55 | 29 | 25 Jul | 22 Oct | ||||
| 57. | House Martin | 0 | 126 | 217 | 0 | 0 | 343 | 313 | 30 | 77 (31 Aug) | 21 | 11 | 15 Aug | 23 Sep | ||||
| 58. | Long-tailed Tit | 0 | 0 | 16 | 1 | 5 | 22 | 9 | 13 | 13 (30 Sep) | 8 | 4 | 15 Sep | 4 Nov | ||||
| 59. | Chiffchaff | 0 | 0 | 10 | 4 | 0 | 14 | 13 | 1 | 4 (30 Sep) | 15 | 8 | 12 Sep | 14 Oct | ||||
| 60. | Firecrest | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 3 Oct) | 2 | 1 | 3 Oct | 3 Oct | ||||
| Species | Jul | Aug | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Goldcrest | 0 | 0 | 2 | 40 | 0 | 42 | 42 | 0 | 9 (24 Oct) | 23 | 12 | 26 Sep | 31 Oct | ||||
| 62. | Short-toed Tree Creeper | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (31 Oct) | 2 | 1 | 31 Oct | 31 Oct | ||||
| 63. | Starling | 11 | 94 | 1492 | 6137 | 2560 | 10294 | 10223 | 71 | 1742 ( 4 Nov) | 75 | 40 | 20 Jul | 21 Nov | ||||
| 64. | Song Thrush | 1 | 3 | 385 | 267 | 6 | 662 | 637 | 25 | 338 (30 Sep) | 57 | 30 | 20 Jul | 11 Nov | ||||
| 65. | Mistle Thrush | 0 | 1 | 0 | 14 | 1 | 16 | 13 | 3 | 4 (14 Oct) | 15 | 8 | 29 Aug | 7 Nov | ||||
| 66. | Redwing | 0 | 0 | 5 | 2923 | 516 | 3444 | 3272 | 172 | 752 (14 Oct) | 49 | 26 | 30 Sep | 21 Nov | ||||
| 67. | Blackbird | 0 | 0 | 11 | 55 | 31 | 97 | 88 | 9 | 18 ( 7 Nov) | 43 | 23 | 5 Sep | 21 Nov | ||||
| 68. | Fieldfare | 0 | 0 | 0 | 918 | 376 | 1294 | 1278 | 16 | 234 (20 Oct) | 32 | 17 | 11 Oct | 21 Nov | ||||
| 69. | thrush sp. | 0 | 0 | 0 | 5 | 0 | 5 | 5 | 0 | 5 (20 Oct) | 2 | 1 | 20 Oct | 20 Oct | ||||
| 70. | Tree Sparrow | 0 | 0 | 0 | 16 | 2 | 18 | 15 | 3 | 7 (11 Oct) | 9 | 5 | 11 Oct | 7 Nov | ||||
| 71. | House Sparrow | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 2 (10 Oct) | 2 | 1 | 10 Oct | 10 Oct | ||||
| 72. | Dunnock | 0 | 0 | 8 | 7 | 0 | 15 | 15 | 0 | 3 ( 5 Sep) | 17 | 9 | 5 Sep | 31 Oct | ||||
| 73. | Blue-headed Wagtail | 1 | 36 | 49 | 0 | 0 | 86 | 86 | 0 | 12 (31 Aug) | 30 | 16 | 25 Jul | 23 Sep | ||||
| 74. | Grey Wagtail | 0 | 0 | 8 | 12 | 1 | 21 | 20 | 1 | 3 (21 Sep) | 25 | 13 | 2 Sep | 4 Nov | ||||
| 75. | White Wagtail | 13 | 66 | 245 | 216 | 4 | 544 | 503 | 41 | 64 ( 7 Oct) | 89 | 47 | 15 Jul | 14 Nov | ||||
| 76. | Meadow Pipit | 0 | 0 | 337 | 1126 | 40 | 1503 | 1500 | 3 | 650 ( 7 Oct) | 51 | 27 | 16 Sep | 18 Nov | ||||
| 77. | Tree Pipit | 0 | 25 | 5 | 0 | 0 | 30 | 30 | 0 | 15 (22 Aug) | 11 | 6 | 22 Aug | 19 Sep | ||||
| 78. | Water Pipit | 0 | 0 | 0 | 7 | 3 | 10 | 10 | 0 | 3 (20 Oct) | 13 | 7 | 17 Oct | 18 Nov | ||||
| 79. | pipit sp. | 0 | 0 | 2 | 0 | 0 | 2 | 2 | 0 | 2 ( 2 Sep) | 2 | 1 | 2 Sep | 2 Sep | ||||
| 80. | Chaffinch | 2 | 3 | 1811 | 12521 | 688 | 15025 | 14928 | 97 | 5188 (10 Oct) | 75 | 40 | 25 Jul | 21 Nov | ||||
| 81. | Brambling | 0 | 0 | 0 | 324 | 61 | 385 | 381 | 4 | 145 (26 Oct) | 36 | 19 | 3 Oct | 21 Nov | ||||
| 82. | Hawfinch | 0 | 0 | 0 | 18 | 2 | 20 | 18 | 2 | 8 (26 Oct) | 13 | 7 | 3 Oct | 4 Nov | ||||
| 83. | Bullfinch | 0 | 0 | 0 | 6 | 1 | 7 | 7 | 0 | 6 (31 Oct) | 4 | 2 | 31 Oct | 4 Nov | ||||
| 84. | Greenfinch | 2 | 60 | 83 | 85 | 12 | 242 | 229 | 13 | 21 (12 Sep) | 81 | 43 | 25 Jul | 21 Nov | ||||
| 85. | Linnet | 0 | 0 | 18 | 238 | 1 | 257 | 257 | 0 | 170 ( 7 Oct) | 26 | 14 | 16 Sep | 7 Nov | ||||
| 86. | Lesser Redpoll | 0 | 0 | 0 | 3 | 0 | 3 | 3 | 0 | 3 (26 Oct) | 2 | 1 | 26 Oct | 26 Oct | ||||
| 87. | Redpoll | 0 | 0 | 4 | 31 | 3 | 38 | 38 | 0 | 18 (17 Oct) | 25 | 13 | 21 Sep | 7 Nov | ||||
| 88. | Goldfinch | 34 | 72 | 52 | 218 | 45 | 421 | 415 | 6 | 51 (10 Oct) | 74 | 39 | 15 Jul | 21 Nov | ||||
| 89. | Siskin | 0 | 0 | 49 | 1084 | 223 | 1356 | 1313 | 43 | 135 ( 7 Oct) | 57 | 30 | 16 Sep | 21 Nov | ||||
| 90. | Reed Bunting | 0 | 0 | 23 | 63 | 6 | 92 | 92 | 0 | 11 (14 Oct) | 45 | 24 | 12 Sep | 7 Nov | ||||
| Other species | ||||||||||||||||||
| Species | Jul | Aug | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Large White | 0 | 0 | 5 | 0 | 0 | 5 | 5 | 0 | 5 (16 Sep) | 2 | 1 | 16 Sep | 16 Sep | ||||
| 2. | Red Admiral | 0 | 0 | 6 | 0 | 0 | 6 | 6 | 0 | 3 (16 Sep) | 6 | 3 | 9 Sep | 16 Sep | ||||
| Species | Jul | Aug | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 353 | 1738 | 7882 | 41520 | 8049 | 59542 | 56829 | 2713 | 100 | 53 | ||||||||
| Observation hours | 5:25 | 19:40 | 35:40 | 54:54 | 15:15 | 130:54 | ||||||||||||
This page is created on 2025/11/24 13:32:37 and will be cached for 2 minutes.
