Also present
Totals Opstalvallei 2023
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Greylag Goose | 31 | 128 | 95 | 254 | 254 | 0 | 66 ( 7 Oct) | 36 | 14 | 16 Sep | 20 Nov | ||||
| 2. | Anser sp. | 0 | 133 | 108 | 241 | 234 | 7 | 80 (28 Oct) | 23 | 9 | 15 Oct | 23 Nov | ||||
| 3. | Bean Goose sp. | 0 | 33 | 0 | 33 | 33 | 0 | 16 (31 Oct) | 8 | 3 | 28 Oct | 31 Oct | ||||
| 4. | Eurasian White-fronted Goose | 0 | 169 | 106 | 275 | 191 | 84 | 90 ( 9 Nov) | 23 | 9 | 9 Oct | 9 Nov | ||||
| 5. | Egyptian Goose | 32 | 23 | 3 | 58 | 39 | 19 | 31 (15 Sep) | 13 | 5 | 10 Sep | 16 Nov | ||||
| 6. | Ruddy Shelduck | 0 | 1 | 0 | 1 | 1 | 0 | 1 (14 Oct) | 3 | 1 | 14 Oct | 14 Oct | ||||
| 7. | Gadwall | 0 | 7 | 0 | 7 | 7 | 0 | 7 (27 Oct) | 3 | 1 | 27 Oct | 27 Oct | ||||
| 8. | Mallard | 0 | 34 | 5 | 39 | 39 | 0 | 16 (27 Oct) | 21 | 8 | 16 Oct | 3 Nov | ||||
| 9. | Pintail | 1 | 0 | 0 | 1 | 1 | 0 | 1 (18 Sep) | 3 | 1 | 18 Sep | 18 Sep | ||||
| 10. | Pochard | 0 | 0 | 31 | 31 | 31 | 0 | 31 ( 2 Nov) | 3 | 1 | 2 Nov | 2 Nov | ||||
| 11. | Stock Dove | 57 | 331 | 114 | 502 | 404 | 98 | 72 (31 Oct) | 90 | 35 | 9 Sep | 23 Nov | ||||
| 12. | Woodpigeon | 338 | 1011 | 395 | 1744 | 1480 | 264 | 178 ( 8 Oct) | 95 | 37 | 9 Sep | 23 Nov | ||||
| 13. | Collared Dove | 0 | 6 | 0 | 6 | 6 | 0 | 2 ( 1 Oct) | 8 | 3 | 1 Oct | 23 Oct | ||||
| 14. | Golden Plover | 0 | 3 | 37 | 40 | 40 | 0 | 37 ( 1 Nov) | 5 | 2 | 29 Oct | 1 Nov | ||||
| 15. | Lapwing | 8 | 88 | 55 | 151 | 151 | 0 | 50 (23 Nov) | 26 | 10 | 25 Sep | 23 Nov | ||||
| 16. | Curlew | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 8 Oct) | 3 | 1 | 8 Oct | 8 Oct | ||||
| 17. | Snipe | 0 | 3 | 0 | 3 | 2 | 1 | 1 ( 8 Oct) | 8 | 3 | 8 Oct | 15 Oct | ||||
| 18. | Little Gull | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 3 Nov) | 3 | 1 | 3 Nov | 3 Nov | ||||
| 19. | Black-headed Gull | 213 | 1034 | 484 | 1731 | 1674 | 57 | 164 ( 9 Nov) | 95 | 37 | 9 Sep | 23 Nov | ||||
| 20. | Mediterranean Gull | 3 | 4 | 7 | 14 | 14 | 0 | 3 (16 Oct) | 26 | 10 | 10 Sep | 16 Nov | ||||
| 21. | Common Gull | 71 | 144 | 111 | 326 | 301 | 25 | 24 (23 Nov) | 92 | 36 | 9 Sep | 23 Nov | ||||
| 22. | Herring Gull | 1422 | 1807 | 800 | 4029 | 3905 | 124 | 333 (22 Oct) | 92 | 36 | 9 Sep | 23 Nov | ||||
| 23. | Great Black-backed Gull | 16 | 44 | 16 | 76 | 72 | 4 | 10 (22 Oct) | 64 | 25 | 16 Sep | 23 Nov | ||||
| 24. | Lesser Black-backed Gull | 14 | 36 | 17 | 67 | 62 | 5 | 7 (29 Sep) | 64 | 25 | 10 Sep | 23 Nov | ||||
| 25. | Cormorant | 52 | 490 | 239 | 781 | 779 | 2 | 260 (15 Oct) | 77 | 30 | 15 Sep | 23 Nov | ||||
| 26. | Spoonbill | 4 | 0 | 0 | 4 | 2 | 2 | 2 (10 Sep) | 8 | 3 | 10 Sep | 25 Sep | ||||
| 27. | Great White Egret | 5 | 35 | 3 | 43 | 43 | 0 | 9 ( 8 Oct) | 41 | 16 | 10 Sep | 4 Nov | ||||
| 28. | Grey Heron | 9 | 15 | 5 | 29 | 29 | 0 | 5 (22 Oct) | 31 | 12 | 10 Sep | 4 Nov | ||||
| 29. | Sparrowhawk | 5 | 58 | 29 | 92 | 91 | 1 | 15 ( 1 Nov) | 67 | 26 | 9 Sep | 9 Nov | ||||
| 30. | Goshawk | 0 | 2 | 0 | 2 | 2 | 0 | 1 (14 Oct) | 5 | 2 | 14 Oct | 21 Oct | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Marsh Harrier | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 1 Oct) | 3 | 1 | 1 Oct | 1 Oct | ||||
| 32. | Hen Harrier | 0 | 0 | 1 | 1 | 1 | 0 | 1 (20 Nov) | 3 | 1 | 20 Nov | 20 Nov | ||||
| 33. | harrier sp. | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 9 Oct) | 3 | 1 | 9 Oct | 9 Oct | ||||
| 34. | Common Buzzard | 11 | 46 | 27 | 84 | 84 | 0 | 11 (21 Oct) | 67 | 26 | 18 Sep | 23 Nov | ||||
| 35. | Great Spotted Woodpecker | 5 | 21 | 2 | 28 | 28 | 0 | 5 (16 Oct) | 41 | 16 | 15 Sep | 9 Nov | ||||
| 36. | Kestrel | 1 | 3 | 2 | 6 | 6 | 0 | 2 (28 Oct) | 10 | 4 | 25 Sep | 2 Nov | ||||
| 37. | falcon sp. | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 9 Oct) | 3 | 1 | 9 Oct | 9 Oct | ||||
| 38. | Merlin | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 9 Oct) | 3 | 1 | 9 Oct | 9 Oct | ||||
| 39. | Hobby | 1 | 1 | 0 | 2 | 1 | 1 | 1 (30 Sep) | 5 | 2 | 30 Sep | 2 Oct | ||||
| 40. | Peregrine | 0 | 3 | 0 | 3 | 3 | 0 | 1 (13 Oct) | 8 | 3 | 13 Oct | 28 Oct | ||||
| 41. | Jay | 207 | 239 | 0 | 446 | 446 | 0 | 101 ( 1 Oct) | 46 | 18 | 18 Sep | 30 Oct | ||||
| 42. | Jackdaw | 8 | 1227 | 409 | 1644 | 1170 | 474 | 497 (23 Oct) | 51 | 20 | 22 Sep | 23 Nov | ||||
| 43. | Carrion Crow | 0 | 0 | 28 | 28 | 20 | 8 | 24 ( 3 Nov) | 5 | 2 | 2 Nov | 3 Nov | ||||
| 44. | Coal Tit | 0 | 38 | 38 | 76 | 76 | 0 | 28 ( 1 Nov) | 21 | 8 | 13 Oct | 4 Nov | ||||
| 45. | Willow Tit | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 3 Nov) | 3 | 1 | 3 Nov | 3 Nov | ||||
| 46. | Blue Tit | 81 | 1054 | 560 | 1695 | 1695 | 0 | 224 ( 4 Nov) | 77 | 30 | 16 Sep | 20 Nov | ||||
| 47. | Great Tit | 0 | 58 | 3 | 61 | 61 | 0 | 32 (19 Oct) | 31 | 12 | 8 Oct | 4 Nov | ||||
| 48. | Parus (tit) sp. | 0 | 0 | 24 | 24 | 24 | 0 | 24 ( 3 Nov) | 3 | 1 | 3 Nov | 3 Nov | ||||
| 49. | Wood Lark | 16 | 178 | 67 | 261 | 261 | 0 | 61 ( 4 Nov) | 56 | 22 | 22 Sep | 4 Nov | ||||
| 50. | Skylark | 0 | 181 | 160 | 341 | 329 | 12 | 76 ( 4 Nov) | 46 | 18 | 9 Oct | 20 Nov | ||||
| 51. | Swallow | 315 | 18 | 0 | 333 | 327 | 6 | 141 (24 Sep) | 38 | 15 | 9 Sep | 31 Oct | ||||
| 52. | House Martin | 100 | 0 | 0 | 100 | 0 | 100 | 100 ( 9 Sep) | 3 | 1 | 9 Sep | 9 Sep | ||||
| 53. | Starling | 400 | 8128 | 3760 | 12288 | 12158 | 130 | 1750 ( 4 Nov) | 92 | 36 | 15 Sep | 23 Nov | ||||
| 54. | Song Thrush | 14 | 316 | 24 | 354 | 354 | 0 | 121 ( 8 Oct) | 67 | 26 | 16 Sep | 23 Nov | ||||
| 55. | Mistle Thrush | 0 | 8 | 0 | 8 | 8 | 0 | 2 (13 Oct) | 13 | 5 | 8 Oct | 28 Oct | ||||
| 56. | Redwing | 0 | 1624 | 1346 | 2970 | 2957 | 13 | 612 ( 1 Nov) | 62 | 24 | 7 Oct | 23 Nov | ||||
| 57. | Blackbird | 0 | 27 | 9 | 36 | 35 | 1 | 7 (23 Oct) | 36 | 14 | 9 Oct | 16 Nov | ||||
| 58. | Fieldfare | 0 | 284 | 853 | 1137 | 1137 | 0 | 741 ( 4 Nov) | 33 | 13 | 8 Oct | 23 Nov | ||||
| 59. | Ring Ouzel | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 8 Oct) | 3 | 1 | 8 Oct | 8 Oct | ||||
| 60. | thrush sp. | 0 | 4041 | 5 | 4046 | 4046 | 0 | 2972 ( 9 Oct) | 36 | 14 | 8 Oct | 2 Nov | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Tree Sparrow | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 4 Nov) | 3 | 1 | 4 Nov | 4 Nov | ||||
| 62. | Dunnock | 5 | 31 | 2 | 38 | 38 | 0 | 7 ( 9 Oct) | 41 | 16 | 16 Sep | 16 Nov | ||||
| 63. | Blue-headed Wagtail | 10 | 0 | 0 | 10 | 10 | 0 | 4 ( 9 Sep) | 8 | 3 | 9 Sep | 22 Sep | ||||
| 64. | Yellow wagtail sp. | 8 | 0 | 0 | 8 | 8 | 0 | 4 (18 Sep) | 5 | 2 | 18 Sep | 22 Sep | ||||
| 65. | Grey Wagtail | 27 | 13 | 4 | 44 | 44 | 0 | 13 (25 Sep) | 41 | 16 | 22 Sep | 4 Nov | ||||
| 66. | White Wagtail | 26 | 128 | 8 | 162 | 160 | 2 | 28 ( 9 Oct) | 77 | 30 | 9 Sep | 20 Nov | ||||
| 67. | Motacilla (wagtail) sp. | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 2 Nov) | 3 | 1 | 2 Nov | 2 Nov | ||||
| 68. | Meadow Pipit | 229 | 1175 | 31 | 1435 | 1435 | 0 | 256 (14 Oct) | 97 | 38 | 9 Sep | 23 Nov | ||||
| 69. | Tree Pipit | 74 | 5 | 0 | 79 | 70 | 9 | 21 ( 9 Sep) | 33 | 13 | 9 Sep | 9 Oct | ||||
| 70. | pipit sp. | 2 | 0 | 0 | 2 | 2 | 0 | 1 (10 Sep) | 5 | 2 | 10 Sep | 24 Sep | ||||
| 71. | Chaffinch | 132 | 29815 | 3731 | 33678 | 33678 | 0 | 6754 (14 Oct) | 90 | 35 | 15 Sep | 23 Nov | ||||
| 72. | Brambling | 1 | 96 | 19 | 116 | 116 | 0 | 27 ( 9 Oct) | 46 | 18 | 30 Sep | 16 Nov | ||||
| 73. | finch sp. | 0 | 44 | 55 | 99 | 99 | 0 | 37 (20 Nov) | 18 | 7 | 19 Oct | 20 Nov | ||||
| 74. | Hawfinch | 0 | 20 | 9 | 29 | 29 | 0 | 6 ( 4 Nov) | 26 | 10 | 8 Oct | 4 Nov | ||||
| 75. | Bullfinch | 0 | 4 | 1 | 5 | 5 | 0 | 2 (30 Oct) | 10 | 4 | 21 Oct | 9 Nov | ||||
| 76. | Greenfinch | 5 | 180 | 37 | 222 | 222 | 0 | 26 (31 Oct) | 72 | 28 | 15 Sep | 20 Nov | ||||
| 77. | Linnet | 16 | 462 | 107 | 585 | 585 | 0 | 100 (22 Oct) | 62 | 24 | 18 Sep | 9 Nov | ||||
| 78. | redpoll sp. | 0 | 27 | 22 | 49 | 49 | 0 | 16 (16 Nov) | 44 | 17 | 8 Oct | 16 Nov | ||||
| 79. | Crossbill | 67 | 6 | 5 | 78 | 78 | 0 | 61 (25 Sep) | 18 | 7 | 9 Sep | 4 Nov | ||||
| 80. | Goldfinch | 9 | 222 | 49 | 280 | 280 | 0 | 36 (30 Oct) | 79 | 31 | 23 Sep | 23 Nov | ||||
| 81. | Siskin | 207 | 2112 | 274 | 2593 | 2593 | 0 | 433 (13 Oct) | 79 | 31 | 15 Sep | 20 Nov | ||||
| 82. | Reed Bunting | 5 | 111 | 56 | 172 | 172 | 0 | 30 ( 4 Nov) | 74 | 29 | 10 Sep | 23 Nov | ||||
| 83. | passerine sp. | 84 | 400 | 10 | 494 | 494 | 0 | 400 (23 Oct) | 18 | 7 | 18 Sep | 2 Nov | ||||
| Other species | ||||||||||||||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Red Admiral | 0 | 1 | 0 | 1 | 1 | 0 | 1 (16 Oct) | 3 | 1 | 16 Oct | 16 Oct | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 4347 | 57992 | 14402 | 76741 | 75291 | 1450 | 100 | 39 | ||||||||
| Observation hours | 29:15 | 69:39 | 20:10 | 119:04 | ||||||||||||
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