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Totals De Vulkaan (Den Haag) 2025
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Dark-bellied Brent Goose | 26 | 0 | 26 | 26 | 0 | 18 (11 Jan) | 10 | 3 | 1 Jan | 11 Jan | ||||
| 2. | Canada Goose | 83 | 42 | 125 | 68 | 57 | 36 ( 2 Jan) | 32 | 10 | 1 Jan | 21 Feb | ||||
| 3. | Barnacle Goose | 386 | 592 | 978 | 481 | 497 | 336 ( 1 Feb) | 35 | 11 | 3 Jan | 21 Feb | ||||
| 4. | Greylag Goose | 82 | 229 | 311 | 155 | 156 | 71 (21 Feb) | 58 | 18 | 1 Jan | 21 Feb | ||||
| 5. | Anser sp. | 37 | 210 | 247 | 0 | 247 | 210 ( 1 Feb) | 6 | 2 | 31 Jan | 1 Feb | ||||
| 6. | goose sp. | 10539 | 528 | 11067 | 626 | 10441 | 8558 (11 Jan) | 42 | 13 | 2 Jan | 21 Feb | ||||
| 7. | Pink-footed Goose | 178 | 947 | 1125 | 14 | 1111 | 451 (21 Feb) | 19 | 6 | 2 Jan | 21 Feb | ||||
| 8. | Tundra Bean Goose | 11 | 9 | 20 | 0 | 20 | 11 (26 Jan) | 10 | 3 | 26 Jan | 2 Feb | ||||
| 9. | Eurasian White-fronted Goose | 263 | 382 | 645 | 177 | 468 | 190 (26 Jan) | 32 | 10 | 2 Jan | 21 Feb | ||||
| 10. | Mute Swan | 3 | 4 | 7 | 4 | 3 | 4 ( 9 Feb) | 10 | 3 | 10 Jan | 9 Feb | ||||
| 11. | Egyptian Goose | 99 | 122 | 221 | 65 | 156 | 30 ( 1 Feb) | 45 | 14 | 2 Jan | 21 Feb | ||||
| 12. | Shelduck | 39 | 37 | 76 | 69 | 7 | 23 ( 1 Feb) | 35 | 11 | 2 Jan | 18 Feb | ||||
| 13. | Shoveler | 0 | 3 | 3 | 0 | 3 | 3 (18 Feb) | 3 | 1 | 18 Feb | 18 Feb | ||||
| 14. | Gadwall | 12 | 0 | 12 | 9 | 3 | 7 (22 Jan) | 6 | 2 | 3 Jan | 22 Jan | ||||
| 15. | Wigeon | 699 | 87 | 786 | 406 | 380 | 178 (25 Jan) | 55 | 17 | 1 Jan | 21 Feb | ||||
| 16. | Mallard | 6 | 2 | 8 | 3 | 5 | 2 ( 5 Jan) | 16 | 5 | 5 Jan | 6 Feb | ||||
| 17. | Pintail | 1 | 10 | 11 | 0 | 11 | 8 ( 9 Feb) | 10 | 3 | 3 Jan | 18 Feb | ||||
| 18. | Teal | 7 | 21 | 28 | 2 | 26 | 13 (16 Feb) | 16 | 5 | 8 Jan | 16 Feb | ||||
| 19. | duck sp. | 0 | 2 | 2 | 2 | 0 | 2 (18 Feb) | 3 | 1 | 18 Feb | 18 Feb | ||||
| 20. | Tufted Duck | 4 | 0 | 4 | 2 | 2 | 2 ( 3 Jan) | 10 | 3 | 3 Jan | 19 Jan | ||||
| 21. | Eider | 35 | 23 | 58 | 49 | 9 | 10 (31 Jan) | 48 | 15 | 2 Jan | 18 Feb | ||||
| 22. | Velvet Scoter | 13 | 0 | 13 | 13 | 0 | 5 (25 Jan) | 13 | 4 | 2 Jan | 25 Jan | ||||
| 23. | Common Scoter | 180 | 78 | 258 | 166 | 92 | 45 (10 Jan) | 55 | 17 | 1 Jan | 14 Feb | ||||
| 24. | Long-tailed Duck | 0 | 2 | 2 | 2 | 0 | 2 ( 6 Feb) | 3 | 1 | 6 Feb | 6 Feb | ||||
| 25. | Goosander | 0 | 1 | 1 | 1 | 0 | 1 ( 1 Feb) | 3 | 1 | 1 Feb | 1 Feb | ||||
| 26. | Red-breasted Merganser | 20 | 13 | 33 | 6 | 27 | 13 (10 Jan) | 35 | 11 | 3 Jan | 18 Feb | ||||
| 27. | Stock Dove | 4 | 18 | 22 | 6 | 16 | 11 (21 Feb) | 19 | 6 | 1 Jan | 21 Feb | ||||
| 28. | Woodpigeon | 146 | 309 | 455 | 169 | 286 | 106 (21 Feb) | 77 | 24 | 1 Jan | 21 Feb | ||||
| 29. | Collared Dove | 4 | 0 | 4 | 2 | 2 | 4 (11 Jan) | 3 | 1 | 11 Jan | 11 Jan | ||||
| 30. | Great Crested Grebe | 45 | 113 | 158 | 141 | 17 | 54 ( 1 Feb) | 52 | 16 | 3 Jan | 15 Feb | ||||
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Oystercatcher | 12 | 75 | 87 | 43 | 44 | 20 (21 Feb) | 48 | 15 | 1 Jan | 21 Feb | ||||
| 32. | Golden Plover | 53 | 0 | 53 | 3 | 50 | 50 (11 Jan) | 13 | 4 | 2 Jan | 17 Jan | ||||
| 33. | Lapwing | 0 | 20 | 20 | 1 | 19 | 18 (18 Feb) | 10 | 3 | 1 Feb | 18 Feb | ||||
| 34. | Curlew | 1 | 2 | 3 | 1 | 2 | 1 (11 Jan) | 10 | 3 | 11 Jan | 16 Feb | ||||
| 35. | Snipe | 1 | 0 | 1 | 1 | 0 | 1 (11 Jan) | 3 | 1 | 11 Jan | 11 Jan | ||||
| 36. | wader sp. | 1 | 17 | 18 | 18 | 0 | 17 (21 Feb) | 6 | 2 | 17 Jan | 21 Feb | ||||
| 37. | Sanderling | 3 | 9 | 12 | 10 | 2 | 6 (16 Feb) | 16 | 5 | 10 Jan | 16 Feb | ||||
| 38. | Dunlin | 0 | 2 | 2 | 1 | 1 | 1 ( 9 Feb) | 6 | 2 | 9 Feb | 21 Feb | ||||
| 39. | Little Gull | 42 | 3 | 45 | 42 | 3 | 25 (10 Jan) | 23 | 7 | 2 Jan | 21 Feb | ||||
| 40. | Kittiwake | 404 | 0 | 404 | 397 | 7 | 156 ( 8 Jan) | 32 | 10 | 1 Jan | 26 Jan | ||||
| 41. | Black-headed Gull | 1743 | 1845 | 3588 | 2338 | 1250 | 925 ( 1 Feb) | 97 | 30 | 1 Jan | 21 Feb | ||||
| 42. | Common Gull | 2662 | 507 | 3169 | 2768 | 401 | 877 (10 Jan) | 100 | 31 | 1 Jan | 21 Feb | ||||
| 43. | Caspian Gull | 5 | 1 | 6 | 5 | 1 | 2 (10 Jan) | 13 | 4 | 4 Jan | 15 Feb | ||||
| 44. | Herring Gull | 4774 | 1208 | 5982 | 4170 | 1812 | 911 ( 8 Jan) | 97 | 30 | 1 Jan | 21 Feb | ||||
| 45. | Yellow-legged Gull | 7 | 0 | 7 | 6 | 1 | 3 ( 8 Jan) | 13 | 4 | 5 Jan | 26 Jan | ||||
| 46. | Great Black-backed Gull | 541 | 139 | 680 | 523 | 157 | 76 ( 2 Jan) | 97 | 30 | 1 Jan | 21 Feb | ||||
| 47. | Lesser Black-backed Gull | 41 | 76 | 117 | 45 | 72 | 56 (21 Feb) | 65 | 20 | 1 Jan | 21 Feb | ||||
| 48. | Arctic Skua | 1 | 0 | 1 | 1 | 0 | 1 ( 3 Jan) | 3 | 1 | 3 Jan | 3 Jan | ||||
| 49. | Razorbill | 1 | 0 | 1 | 1 | 0 | 1 ( 8 Jan) | 3 | 1 | 8 Jan | 8 Jan | ||||
| 50. | Razorbill/Guillemot | 40 | 0 | 40 | 38 | 2 | 20 (10 Jan) | 19 | 6 | 2 Jan | 26 Jan | ||||
| 51. | Red-throated Diver | 933 | 164 | 1097 | 895 | 202 | 188 (10 Jan) | 90 | 28 | 1 Jan | 21 Feb | ||||
| 52. | Black-throated Diver | 3 | 0 | 3 | 3 | 0 | 1 ( 2 Jan) | 10 | 3 | 2 Jan | 25 Jan | ||||
| 53. | Great Northern Diver | 1 | 0 | 1 | 1 | 0 | 1 (10 Jan) | 3 | 1 | 10 Jan | 10 Jan | ||||
| 54. | diver sp. | 9 | 0 | 9 | 7 | 2 | 6 (10 Jan) | 13 | 4 | 4 Jan | 31 Jan | ||||
| 55. | Sooty Shearwater | 1 | 0 | 1 | 1 | 0 | 1 ( 8 Jan) | 3 | 1 | 8 Jan | 8 Jan | ||||
| 56. | Gannet | 1333 | 291 | 1624 | 1197 | 427 | 247 (10 Jan) | 87 | 27 | 1 Jan | 21 Feb | ||||
| 57. | Cormorant | 6595 | 1926 | 8521 | 5342 | 3179 | 1801 ( 4 Jan) | 100 | 31 | 1 Jan | 21 Feb | ||||
| 58. | Grey Heron | 6 | 8 | 14 | 2 | 12 | 4 (18 Feb) | 32 | 10 | 4 Jan | 18 Feb | ||||
| 59. | Sparrowhawk | 0 | 1 | 1 | 0 | 1 | 1 (21 Feb) | 3 | 1 | 21 Feb | 21 Feb | ||||
| 60. | Goshawk | 0 | 1 | 1 | 0 | 1 | 1 (16 Feb) | 3 | 1 | 16 Feb | 16 Feb | ||||
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Hen Harrier | 1 | 0 | 1 | 1 | 0 | 1 ( 2 Jan) | 3 | 1 | 2 Jan | 2 Jan | ||||
| 62. | Red Kite | 1 | 0 | 1 | 0 | 1 | 1 (26 Jan) | 3 | 1 | 26 Jan | 26 Jan | ||||
| 63. | White-tailed Eagle | 0 | 1 | 1 | 0 | 1 | 1 ( 9 Feb) | 3 | 1 | 9 Feb | 9 Feb | ||||
| 64. | Common Buzzard | 0 | 2 | 2 | 0 | 2 | 1 (14 Feb) | 6 | 2 | 14 Feb | 15 Feb | ||||
| 65. | Great Spotted Woodpecker | 0 | 3 | 3 | 0 | 3 | 3 (21 Feb) | 3 | 1 | 21 Feb | 21 Feb | ||||
| 66. | Magpie | 5 | 13 | 18 | 10 | 8 | 10 ( 9 Feb) | 13 | 4 | 2 Jan | 18 Feb | ||||
| 67. | Jackdaw | 0 | 24 | 24 | 2 | 22 | 11 (21 Feb) | 16 | 5 | 1 Feb | 21 Feb | ||||
| 68. | Carrion Crow | 0 | 2 | 2 | 1 | 1 | 1 ( 1 Feb) | 6 | 2 | 1 Feb | 14 Feb | ||||
| 69. | Blue Tit | 8 | 10 | 18 | 3 | 15 | 6 (10 Jan) | 19 | 6 | 10 Jan | 21 Feb | ||||
| 70. | Great Tit | 0 | 9 | 9 | 6 | 3 | 5 (14 Feb) | 13 | 4 | 9 Feb | 21 Feb | ||||
| 71. | Wood Lark | 0 | 15 | 15 | 3 | 12 | 15 (21 Feb) | 3 | 1 | 21 Feb | 21 Feb | ||||
| 72. | Skylark | 1 | 16 | 17 | 0 | 17 | 10 (21 Feb) | 23 | 7 | 26 Jan | 21 Feb | ||||
| 73. | Long-tailed Tit | 0 | 10 | 10 | 0 | 10 | 4 ( 9 Feb) | 10 | 3 | 7 Feb | 15 Feb | ||||
| 74. | Goldcrest | 1 | 0 | 1 | 1 | 0 | 1 ( 2 Jan) | 3 | 1 | 2 Jan | 2 Jan | ||||
| 75. | Starling | 144 | 30 | 174 | 128 | 46 | 75 (19 Jan) | 55 | 17 | 2 Jan | 21 Feb | ||||
| 76. | Song Thrush | 4 | 4 | 8 | 4 | 4 | 2 ( 6 Feb) | 23 | 7 | 4 Jan | 21 Feb | ||||
| 77. | Mistle Thrush | 0 | 4 | 4 | 0 | 4 | 2 (18 Feb) | 6 | 2 | 18 Feb | 21 Feb | ||||
| 78. | Redwing | 42 | 3 | 45 | 27 | 18 | 16 (19 Jan) | 23 | 7 | 2 Jan | 1 Feb | ||||
| 79. | Blackbird | 2 | 0 | 2 | 1 | 1 | 1 ( 2 Jan) | 6 | 2 | 2 Jan | 11 Jan | ||||
| 80. | Fieldfare | 17 | 5 | 22 | 18 | 4 | 8 (11 Jan) | 13 | 4 | 2 Jan | 9 Feb | ||||
| 81. | Dunnock | 0 | 1 | 1 | 0 | 1 | 1 ( 1 Feb) | 3 | 1 | 1 Feb | 1 Feb | ||||
| 82. | Grey Wagtail | 0 | 1 | 1 | 0 | 1 | 1 ( 1 Feb) | 3 | 1 | 1 Feb | 1 Feb | ||||
| 83. | White Wagtail | 2 | 0 | 2 | 0 | 2 | 2 (26 Jan) | 3 | 1 | 26 Jan | 26 Jan | ||||
| 84. | alba wagtail sp. | 0 | 2 | 2 | 0 | 2 | 1 ( 8 Feb) | 6 | 2 | 8 Feb | 21 Feb | ||||
| 85. | Meadow Pipit | 10 | 115 | 125 | 8 | 117 | 109 (21 Feb) | 32 | 10 | 2 Jan | 21 Feb | ||||
| 86. | Chaffinch | 136 | 228 | 364 | 139 | 225 | 79 (11 Jan) | 71 | 22 | 1 Jan | 21 Feb | ||||
| 87. | Greenfinch | 5 | 12 | 17 | 6 | 11 | 3 ( 2 Feb) | 29 | 9 | 8 Jan | 21 Feb | ||||
| 88. | Linnet | 0 | 3 | 3 | 2 | 1 | 2 ( 1 Feb) | 6 | 2 | 1 Feb | 9 Feb | ||||
| 89. | Goldfinch | 16 | 12 | 28 | 4 | 24 | 12 ( 1 Jan) | 23 | 7 | 1 Jan | 21 Feb | ||||
| 90. | Siskin | 2 | 15 | 17 | 16 | 1 | 11 ( 2 Feb) | 16 | 5 | 2 Jan | 21 Feb | ||||
| Other species | |||||||||||||||
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Harbour Porpoise | 3 | 6 | 9 | 7 | 2 | 3 ( 9 Feb) | 19 | 6 | 1 Jan | 15 Feb | ||||
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 32535 | 10625 | 43160 | 20911 | 22249 | 100 | 31 | ||||||||
| Observation hours | 65:45 | 46:47 | 112:32 | ||||||||||||
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