Totals Opstalvallei 2017
| Year | |
| Period | |
| count-field | |
| Also present | |
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Greylag Goose | 0 | 342 | 0 | 342 | 342 | 0 | 67 (11 Oct) | 32 | 10 | 1 Oct | 28 Oct | ||||
| 2. | Eurasian White-fronted Goose | 0 | 1 | 0 | 1 | 1 | 0 | 1 (28 Oct) | 3 | 1 | 28 Oct | 28 Oct | ||||
| 3. | Mute Swan | 2 | 0 | 0 | 2 | 2 | 0 | 2 (16 Sep) | 3 | 1 | 16 Sep | 16 Sep | ||||
| 4. | Egyptian Goose | 5 | 2 | 12 | 19 | 19 | 0 | 12 ( 4 Nov) | 10 | 3 | 30 Sep | 4 Nov | ||||
| 5. | Stock Dove | 0 | 68 | 4 | 72 | 72 | 0 | 32 (18 Oct) | 42 | 13 | 1 Oct | 5 Nov | ||||
| 6. | Woodpigeon | 0 | 594 | 129 | 723 | 723 | 0 | 130 (28 Oct) | 48 | 15 | 11 Oct | 5 Nov | ||||
| 7. | Lapwing | 4 | 137 | 127 | 268 | 268 | 0 | 93 ( 4 Nov) | 52 | 16 | 30 Sep | 5 Nov | ||||
| 8. | Snipe | 0 | 4 | 1 | 5 | 5 | 0 | 3 ( 7 Oct) | 10 | 3 | 7 Oct | 4 Nov | ||||
| 9. | Green Sandpiper | 4 | 11 | 2 | 17 | 17 | 0 | 4 (10 Oct) | 26 | 8 | 23 Sep | 1 Nov | ||||
| 10. | wader sp. | 0 | 9 | 0 | 9 | 9 | 0 | 8 ( 9 Oct) | 6 | 2 | 9 Oct | 14 Oct | ||||
| 11. | Caspian Gull | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 4 Nov) | 3 | 1 | 4 Nov | 4 Nov | ||||
| 12. | Great Black-backed Gull | 1 | 1 | 0 | 2 | 2 | 0 | 1 (30 Sep) | 6 | 2 | 30 Sep | 7 Oct | ||||
| 13. | Cormorant | 73 | 854 | 18 | 945 | 945 | 0 | 614 ( 8 Oct) | 45 | 14 | 2 Sep | 4 Nov | ||||
| 14. | Spoonbill | 0 | 4 | 0 | 4 | 4 | 0 | 2 (11 Oct) | 10 | 3 | 11 Oct | 15 Oct | ||||
| 15. | Great White Egret | 0 | 16 | 2 | 18 | 18 | 0 | 4 (20 Oct) | 29 | 9 | 12 Oct | 1 Nov | ||||
| 16. | Grey Heron | 5 | 10 | 2 | 17 | 17 | 0 | 6 (17 Oct) | 23 | 7 | 17 Sep | 4 Nov | ||||
| 17. | Honey Buzzard | 1 | 0 | 0 | 1 | 1 | 0 | 1 ( 2 Sep) | 3 | 1 | 2 Sep | 2 Sep | ||||
| 18. | Sparrowhawk | 1 | 38 | 6 | 45 | 45 | 0 | 9 (14 Oct) | 55 | 17 | 30 Sep | 5 Nov | ||||
| 19. | Goshawk | 1 | 0 | 1 | 2 | 2 | 0 | 1 (30 Sep) | 6 | 2 | 30 Sep | 4 Nov | ||||
| 20. | Hen Harrier | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 1 Nov) | 3 | 1 | 1 Nov | 1 Nov | ||||
| 21. | Red Kite | 1 | 0 | 0 | 1 | 1 | 0 | 1 (24 Sep) | 3 | 1 | 24 Sep | 24 Sep | ||||
| 22. | Common Buzzard | 1 | 21 | 3 | 25 | 25 | 0 | 16 (14 Oct) | 19 | 6 | 30 Sep | 4 Nov | ||||
| 23. | Lesser Spotted Woodpecker | 0 | 1 | 0 | 1 | 1 | 0 | 1 (14 Oct) | 3 | 1 | 14 Oct | 14 Oct | ||||
| 24. | Great Spotted Woodpecker | 14 | 12 | 0 | 26 | 26 | 0 | 8 ( 3 Sep) | 29 | 9 | 3 Sep | 19 Oct | ||||
| 25. | Kestrel | 2 | 0 | 0 | 2 | 2 | 0 | 1 (25 Sep) | 6 | 2 | 25 Sep | 30 Sep | ||||
| 26. | Merlin | 0 | 1 | 0 | 1 | 1 | 0 | 1 (28 Oct) | 3 | 1 | 28 Oct | 28 Oct | ||||
| 27. | Jackdaw | 0 | 1016 | 135 | 1151 | 1151 | 0 | 383 (15 Oct) | 48 | 15 | 9 Oct | 5 Nov | ||||
| 28. | Rook | 0 | 10 | 4 | 14 | 14 | 0 | 8 (28 Oct) | 10 | 3 | 17 Oct | 4 Nov | ||||
| 29. | Carrion Crow | 0 | 37 | 1 | 38 | 38 | 0 | 9 (17 Oct) | 35 | 11 | 11 Oct | 4 Nov | ||||
| 30. | Coal Tit | 129 | 327 | 8 | 464 | 464 | 0 | 152 (12 Oct) | 32 | 10 | 23 Sep | 4 Nov | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Blue Tit | 57 | 305 | 18 | 380 | 380 | 0 | 148 (14 Oct) | 52 | 16 | 17 Sep | 4 Nov | ||||
| 32. | Great Tit | 9 | 95 | 2 | 106 | 106 | 0 | 35 (14 Oct) | 35 | 11 | 23 Sep | 1 Nov | ||||
| 33. | Parus (tit) sp. | 0 | 409 | 0 | 409 | 409 | 0 | 154 (12 Oct) | 29 | 9 | 8 Oct | 18 Oct | ||||
| 34. | Penduline Tit | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 5 Nov) | 3 | 1 | 5 Nov | 5 Nov | ||||
| 35. | Bearded Tit | 0 | 9 | 11 | 20 | 20 | 0 | 11 ( 4 Nov) | 10 | 3 | 14 Oct | 4 Nov | ||||
| 36. | Wood Lark | 0 | 125 | 8 | 133 | 133 | 0 | 17 ( 1 Oct) | 55 | 17 | 1 Oct | 5 Nov | ||||
| 37. | Skylark | 0 | 316 | 123 | 439 | 438 | 1 | 116 ( 4 Nov) | 45 | 14 | 8 Oct | 4 Nov | ||||
| 38. | Sand Martin | 1 | 0 | 0 | 1 | 1 | 0 | 1 ( 2 Sep) | 3 | 1 | 2 Sep | 2 Sep | ||||
| 39. | Swallow | 51 | 73 | 0 | 124 | 124 | 0 | 35 (10 Sep) | 35 | 11 | 2 Sep | 15 Oct | ||||
| 40. | Starling | 491 | 20207 | 2467 | 23165 | 23134 | 31 | 3911 (17 Oct) | 90 | 28 | 16 Sep | 5 Nov | ||||
| 41. | Song Thrush | 129 | 1150 | 10 | 1289 | 1285 | 4 | 184 ( 8 Oct) | 87 | 27 | 16 Sep | 4 Nov | ||||
| 42. | Mistle Thrush | 6 | 78 | 0 | 84 | 84 | 0 | 28 (15 Oct) | 45 | 14 | 23 Sep | 21 Oct | ||||
| 43. | Redwing | 0 | 7592 | 2201 | 9793 | 9793 | 0 | 2131 ( 4 Nov) | 61 | 19 | 7 Oct | 5 Nov | ||||
| 44. | Blackbird | 1 | 31 | 158 | 190 | 190 | 0 | 156 ( 4 Nov) | 39 | 12 | 30 Sep | 5 Nov | ||||
| 45. | Fieldfare | 0 | 119 | 289 | 408 | 408 | 0 | 234 ( 4 Nov) | 23 | 7 | 14 Oct | 5 Nov | ||||
| 46. | Ring Ouzel | 0 | 7 | 0 | 7 | 7 | 0 | 7 ( 8 Oct) | 3 | 1 | 8 Oct | 8 Oct | ||||
| 47. | thrush sp. | 0 | 846 | 3 | 849 | 849 | 0 | 224 (16 Oct) | 48 | 15 | 7 Oct | 1 Nov | ||||
| 48. | Black Redstart | 0 | 1 | 0 | 1 | 1 | 0 | 1 (10 Oct) | 3 | 1 | 10 Oct | 10 Oct | ||||
| 49. | Wheatear | 7 | 1 | 0 | 8 | 8 | 0 | 7 ( 3 Sep) | 6 | 2 | 3 Sep | 8 Oct | ||||
| 50. | Tree Sparrow | 0 | 220 | 6 | 226 | 226 | 0 | 49 (17 Oct) | 52 | 16 | 8 Oct | 4 Nov | ||||
| 51. | Dunnock | 35 | 77 | 5 | 117 | 117 | 0 | 15 (16 Oct) | 84 | 26 | 2 Sep | 5 Nov | ||||
| 52. | Blue-headed Wagtail | 77 | 1 | 0 | 78 | 78 | 0 | 52 (10 Sep) | 19 | 6 | 2 Sep | 7 Oct | ||||
| 53. | Grey Wagtail | 3 | 50 | 2 | 55 | 54 | 1 | 13 ( 1 Oct) | 61 | 19 | 16 Sep | 4 Nov | ||||
| 54. | White Wagtail | 48 | 290 | 4 | 342 | 341 | 1 | 42 (12 Oct) | 87 | 27 | 3 Sep | 5 Nov | ||||
| 55. | Meadow Pipit | 221 | 2349 | 13 | 2583 | 2583 | 0 | 401 ( 3 Oct) | 97 | 30 | 2 Sep | 4 Nov | ||||
| 56. | Tree Pipit | 53 | 2 | 0 | 55 | 55 | 0 | 25 ( 3 Sep) | 29 | 9 | 2 Sep | 1 Oct | ||||
| 57. | Chaffinch | 1187 | 96248 | 1333 | 98768 | 98768 | 0 | 18379 (14 Oct) | 84 | 26 | 17 Sep | 4 Nov | ||||
| 58. | Brambling | 1 | 299 | 178 | 478 | 478 | 0 | 127 ( 1 Nov) | 71 | 22 | 24 Sep | 5 Nov | ||||
| 59. | Chaffinch/Brambling | 0 | 0 | 692 | 692 | 692 | 0 | 555 ( 4 Nov) | 6 | 2 | 4 Nov | 5 Nov | ||||
| 60. | Hawfinch | 7 | 452 | 30 | 489 | 489 | 0 | 88 (15 Oct) | 71 | 22 | 24 Sep | 5 Nov | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Bullfinch | 0 | 0 | 3 | 3 | 3 | 0 | 3 ( 4 Nov) | 3 | 1 | 4 Nov | 4 Nov | ||||
| 62. | Greenfinch | 3 | 574 | 12 | 589 | 589 | 0 | 90 ( 8 Oct) | 74 | 23 | 30 Sep | 5 Nov | ||||
| 63. | Linnet | 68 | 467 | 5 | 540 | 540 | 0 | 130 ( 1 Oct) | 77 | 24 | 10 Sep | 4 Nov | ||||
| 64. | redpoll sp. | 0 | 23 | 10 | 33 | 30 | 3 | 8 ( 4 Nov) | 32 | 10 | 8 Oct | 4 Nov | ||||
| 65. | Crossbill | 12 | 60 | 1 | 73 | 73 | 0 | 20 (17 Oct) | 32 | 10 | 24 Sep | 4 Nov | ||||
| 66. | Goldfinch | 6 | 132 | 4 | 142 | 142 | 0 | 26 ( 8 Oct) | 74 | 23 | 10 Sep | 5 Nov | ||||
| 67. | Serin | 0 | 5 | 0 | 5 | 5 | 0 | 2 (28 Oct) | 13 | 4 | 14 Oct | 28 Oct | ||||
| 68. | Siskin | 2 | 321 | 65 | 388 | 388 | 0 | 58 ( 4 Nov) | 61 | 19 | 30 Sep | 4 Nov | ||||
| 69. | Reed Bunting | 59 | 327 | 56 | 442 | 442 | 0 | 49 (21 Oct) | 84 | 26 | 16 Sep | 5 Nov | ||||
| 70. | passerine sp. | 0 | 15 | 0 | 15 | 15 | 0 | 11 (10 Oct) | 6 | 2 | 10 Oct | 18 Oct | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 2778 | 136792 | 8167 | 147737 | 147696 | 41 | 100 | 31 | ||||||||
| Observation hours | 21:00 | 54:07 | 6:22 | 81:29 | ||||||||||||
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