Also present
Totals Hoogekampse Plas, De Bilt 2024
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Canada Goose | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 2 (13 Apr) | 4 | 1 | 13 Apr | 13 Apr | ||||
| 2. | Barnacle Goose | 7 | 167 | 426 | 1806 | 2406 | 337 | 2069 | 893 (13 Apr) | 80 | 20 | 11 Jan | 27 Apr | ||||
| 3. | Greylag Goose | 4 | 213 | 113 | 8 | 338 | 59 | 279 | 111 (16 Feb) | 48 | 12 | 11 Jan | 6 Apr | ||||
| 4. | goose sp. | 0 | 0 | 331 | 0 | 331 | 22 | 309 | 160 (15 Mar) | 16 | 4 | 1 Mar | 15 Mar | ||||
| 5. | Tundra Bean Goose | 0 | 6 | 39 | 0 | 45 | 1 | 44 | 39 ( 3 Mar) | 8 | 2 | 13 Feb | 3 Mar | ||||
| 6. | Eurasian White-fronted Goose | 152 | 2244 | 604 | 0 | 3000 | 745 | 2255 | 1425 (10 Feb) | 40 | 10 | 11 Jan | 16 Mar | ||||
| 7. | Mute Swan | 0 | 1 | 5 | 0 | 6 | 0 | 6 | 5 (31 Mar) | 8 | 2 | 10 Feb | 31 Mar | ||||
| 8. | Egyptian Goose | 0 | 0 | 6 | 4 | 10 | 0 | 10 | 6 ( 1 Mar) | 8 | 2 | 1 Mar | 13 Apr | ||||
| 9. | Shelduck | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 Apr) | 4 | 1 | 12 Apr | 12 Apr | ||||
| 10. | Shoveler | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 5 Apr) | 4 | 1 | 5 Apr | 5 Apr | ||||
| 11. | Wigeon | 0 | 0 | 3 | 0 | 3 | 0 | 3 | 3 (16 Mar) | 4 | 1 | 16 Mar | 16 Mar | ||||
| 12. | Mallard | 2 | 5 | 2 | 0 | 9 | 2 | 7 | 4 (22 Feb) | 16 | 4 | 11 Jan | 31 Mar | ||||
| 13. | Pintail | 0 | 0 | 25 | 21 | 46 | 0 | 46 | 25 (16 Mar) | 8 | 2 | 16 Mar | 1 Apr | ||||
| 14. | duck sp. | 0 | 0 | 16 | 0 | 16 | 0 | 16 | 16 (16 Mar) | 4 | 1 | 16 Mar | 16 Mar | ||||
| 15. | Pochard | 0 | 0 | 12 | 1 | 13 | 1 | 12 | 12 (16 Mar) | 8 | 2 | 16 Mar | 27 Apr | ||||
| 16. | Goosander | 1 | 3 | 0 | 0 | 4 | 2 | 2 | 2 (10 Feb) | 12 | 3 | 11 Jan | 13 Feb | ||||
| 17. | Swift | 0 | 0 | 0 | 74 | 74 | 0 | 74 | 72 (27 Apr) | 12 | 3 | 21 Apr | 27 Apr | ||||
| 18. | Stock Dove | 11 | 8 | 10 | 14 | 43 | 7 | 36 | 11 (11 Jan) | 52 | 13 | 11 Jan | 26 Apr | ||||
| 19. | Woodpigeon | 0 | 12 | 130 | 7 | 149 | 8 | 141 | 79 ( 9 Mar) | 44 | 11 | 10 Feb | 26 Apr | ||||
| 20. | Collared Dove | 0 | 0 | 1 | 4 | 5 | 0 | 5 | 2 (13 Apr) | 16 | 4 | 1 Mar | 27 Apr | ||||
| 21. | Crane | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (27 Apr) | 4 | 1 | 27 Apr | 27 Apr | ||||
| 22. | Oystercatcher | 0 | 1 | 1 | 10 | 12 | 0 | 12 | 7 (27 Apr) | 16 | 4 | 25 Feb | 27 Apr | ||||
| 23. | Lapwing | 0 | 177 | 72 | 2 | 251 | 4 | 247 | 104 (25 Feb) | 56 | 14 | 10 Feb | 6 Apr | ||||
| 24. | Golden Plover | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (25 Feb) | 4 | 1 | 25 Feb | 25 Feb | ||||
| 25. | Little Ringed Plover | 0 | 0 | 1 | 6 | 7 | 1 | 6 | 2 ( 5 Apr) | 24 | 6 | 31 Mar | 27 Apr | ||||
| 26. | Whimbrel | 0 | 0 | 0 | 21 | 21 | 3 | 18 | 19 (26 Apr) | 12 | 3 | 6 Apr | 26 Apr | ||||
| 27. | Curlew | 0 | 0 | 2 | 0 | 2 | 1 | 1 | 1 (15 Mar) | 8 | 2 | 15 Mar | 30 Mar | ||||
| 28. | Black-tailed Godwit | 0 | 0 | 13 | 0 | 13 | 2 | 11 | 10 ( 9 Mar) | 12 | 3 | 9 Mar | 29 Mar | ||||
| 29. | wader sp. | 0 | 0 | 27 | 0 | 27 | 0 | 27 | 27 (16 Mar) | 4 | 1 | 16 Mar | 16 Mar | ||||
| 30. | Snipe | 0 | 0 | 4 | 0 | 4 | 0 | 4 | 2 (16 Mar) | 12 | 3 | 3 Mar | 31 Mar | ||||
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Green Sandpiper | 0 | 0 | 9 | 1 | 10 | 0 | 10 | 8 (31 Mar) | 12 | 3 | 30 Mar | 26 Apr | ||||
| 32. | Redshank | 0 | 0 | 7 | 0 | 7 | 2 | 5 | 4 (16 Mar) | 16 | 4 | 3 Mar | 31 Mar | ||||
| 33. | Black-headed Gull | 0 | 497 | 1303 | 156 | 1956 | 52 | 1904 | 494 (16 Mar) | 64 | 16 | 10 Feb | 26 Apr | ||||
| 34. | Common Gull | 1 | 8 | 23 | 5 | 37 | 8 | 29 | 8 (15 Mar) | 56 | 14 | 11 Jan | 27 Apr | ||||
| 35. | Herring Gull | 0 | 4 | 3 | 3 | 10 | 0 | 10 | 2 (22 Feb) | 28 | 7 | 22 Feb | 27 Apr | ||||
| 36. | Caspian Gull | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 1 ( 5 Apr) | 8 | 2 | 5 Apr | 6 Apr | ||||
| 37. | Yellow-legged Gull | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| 38. | Lesser Black-backed Gull | 1 | 15 | 222 | 196 | 434 | 10 | 424 | 84 ( 1 Apr) | 80 | 20 | 11 Jan | 27 Apr | ||||
| 39. | large gull sp. | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (16 Mar) | 4 | 1 | 16 Mar | 16 Mar | ||||
| 40. | Common Tern | 0 | 0 | 0 | 7 | 7 | 0 | 7 | 5 (27 Apr) | 8 | 2 | 26 Apr | 27 Apr | ||||
| 41. | Common/Arctic Tern | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 2 (26 Apr) | 4 | 1 | 26 Apr | 26 Apr | ||||
| 42. | White Stork | 0 | 1 | 6 | 2 | 9 | 3 | 6 | 6 (16 Mar) | 12 | 3 | 22 Feb | 21 Apr | ||||
| 43. | Cormorant | 1 | 19 | 108 | 389 | 517 | 1 | 516 | 214 ( 1 Apr) | 92 | 23 | 11 Jan | 27 Apr | ||||
| 44. | Spoonbill | 0 | 0 | 0 | 4 | 4 | 0 | 4 | 3 ( 6 Apr) | 8 | 2 | 6 Apr | 21 Apr | ||||
| 45. | Grey Heron | 2 | 4 | 10 | 18 | 34 | 2 | 32 | 8 ( 1 Apr) | 64 | 16 | 11 Jan | 27 Apr | ||||
| 46. | Purple Heron | 0 | 0 | 2 | 8 | 10 | 2 | 8 | 3 ( 6 Apr) | 20 | 5 | 31 Mar | 26 Apr | ||||
| 47. | Great White Egret | 0 | 2 | 9 | 5 | 16 | 3 | 13 | 4 (16 Mar) | 36 | 9 | 16 Feb | 27 Apr | ||||
| 48. | Osprey | 0 | 0 | 0 | 4 | 4 | 0 | 4 | 3 (26 Apr) | 8 | 2 | 13 Apr | 26 Apr | ||||
| 49. | Sparrowhawk | 0 | 2 | 12 | 10 | 24 | 1 | 23 | 8 ( 6 Apr) | 44 | 11 | 10 Feb | 12 Apr | ||||
| 50. | Marsh Harrier | 0 | 0 | 2 | 15 | 17 | 1 | 16 | 8 ( 1 Apr) | 28 | 7 | 16 Mar | 27 Apr | ||||
| 51. | Hen Harrier | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| 52. | Red Kite | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (30 Mar) | 4 | 1 | 30 Mar | 30 Mar | ||||
| 53. | White-tailed Eagle | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 2 (16 Mar) | 4 | 1 | 16 Mar | 16 Mar | ||||
| 54. | Common Buzzard | 0 | 0 | 4 | 5 | 9 | 1 | 8 | 3 (16 Mar) | 20 | 5 | 15 Mar | 27 Apr | ||||
| 55. | Short-eared Owl | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (27 Apr) | 4 | 1 | 27 Apr | 27 Apr | ||||
| 56. | Great Spotted Woodpecker | 0 | 2 | 2 | 2 | 6 | 1 | 5 | 2 ( 6 Apr) | 20 | 5 | 10 Feb | 6 Apr | ||||
| 57. | Kestrel | 0 | 1 | 2 | 5 | 8 | 2 | 6 | 2 (27 Apr) | 28 | 7 | 22 Feb | 27 Apr | ||||
| 58. | Merlin | 0 | 0 | 1 | 1 | 2 | 1 | 1 | 1 (15 Mar) | 8 | 2 | 15 Mar | 1 Apr | ||||
| 59. | Hobby | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (27 Apr) | 4 | 1 | 27 Apr | 27 Apr | ||||
| 60. | Peregrine | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Jay | 0 | 0 | 0 | 3 | 3 | 2 | 1 | 2 (27 Apr) | 8 | 2 | 13 Apr | 27 Apr | ||||
| 62. | Magpie | 0 | 1 | 0 | 1 | 2 | 0 | 2 | 1 (10 Feb) | 8 | 2 | 10 Feb | 26 Apr | ||||
| 63. | Jackdaw | 0 | 0 | 16 | 7 | 23 | 0 | 23 | 8 ( 1 Mar) | 24 | 6 | 1 Mar | 13 Apr | ||||
| 64. | Rook | 0 | 0 | 3 | 0 | 3 | 3 | 0 | 2 (30 Mar) | 8 | 2 | 16 Mar | 30 Mar | ||||
| 65. | Carrion Crow | 0 | 2 | 0 | 1 | 3 | 0 | 3 | 2 (10 Feb) | 8 | 2 | 10 Feb | 13 Apr | ||||
| 66. | Blue Tit | 0 | 1 | 7 | 2 | 10 | 0 | 10 | 5 ( 3 Mar) | 16 | 4 | 10 Feb | 6 Apr | ||||
| 67. | Wood Lark | 0 | 11 | 0 | 0 | 11 | 0 | 11 | 11 (10 Feb) | 4 | 1 | 10 Feb | 10 Feb | ||||
| 68. | Skylark | 0 | 13 | 17 | 0 | 30 | 0 | 30 | 11 (10 Feb) | 28 | 7 | 10 Feb | 15 Mar | ||||
| 69. | Sand Martin | 0 | 0 | 11 | 17 | 28 | 0 | 28 | 8 ( 6 Apr) | 36 | 9 | 16 Mar | 27 Apr | ||||
| 70. | Swallow | 0 | 0 | 19 | 60 | 79 | 0 | 79 | 21 ( 6 Apr) | 52 | 13 | 15 Mar | 27 Apr | ||||
| 71. | House Martin | 0 | 0 | 2 | 4 | 6 | 0 | 6 | 1 (29 Mar) | 24 | 6 | 29 Mar | 27 Apr | ||||
| 72. | Long-tailed Tit | 0 | 10 | 0 | 0 | 10 | 0 | 10 | 10 (10 Feb) | 4 | 1 | 10 Feb | 10 Feb | ||||
| 73. | Chiffchaff | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (15 Mar) | 4 | 1 | 15 Mar | 15 Mar | ||||
| 74. | Starling | 0 | 38 | 1926 | 74 | 2038 | 8 | 2030 | 1640 (16 Mar) | 72 | 18 | 10 Feb | 27 Apr | ||||
| 75. | Song Thrush | 0 | 0 | 1 | 2 | 3 | 0 | 3 | 2 ( 1 Apr) | 8 | 2 | 31 Mar | 1 Apr | ||||
| 76. | Mistle Thrush | 0 | 3 | 0 | 1 | 4 | 2 | 2 | 2 (16 Feb) | 12 | 3 | 10 Feb | 12 Apr | ||||
| 77. | Redwing | 0 | 20 | 607 | 5 | 632 | 3 | 629 | 294 (16 Mar) | 48 | 12 | 10 Feb | 5 Apr | ||||
| 78. | Fieldfare | 0 | 2 | 227 | 0 | 229 | 2 | 227 | 187 (15 Mar) | 24 | 6 | 16 Feb | 31 Mar | ||||
| 79. | Ring Ouzel | 0 | 0 | 0 | 4 | 4 | 0 | 4 | 4 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| 80. | thrush sp. | 0 | 0 | 9 | 0 | 9 | 0 | 9 | 9 (31 Mar) | 4 | 1 | 31 Mar | 31 Mar | ||||
| 81. | Blue-headed Wagtail | 0 | 0 | 1 | 24 | 25 | 1 | 24 | 10 ( 6 Apr) | 24 | 6 | 31 Mar | 27 Apr | ||||
| 82. | Grey Wagtail | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (15 Mar) | 4 | 1 | 15 Mar | 15 Mar | ||||
| 83. | White Wagtail | 0 | 4 | 49 | 3 | 56 | 8 | 48 | 13 ( 9 Mar) | 56 | 14 | 10 Feb | 13 Apr | ||||
| 84. | Meadow Pipit | 0 | 4 | 135 | 246 | 385 | 3 | 382 | 195 ( 6 Apr) | 72 | 18 | 10 Feb | 27 Apr | ||||
| 85. | Tree Pipit | 0 | 0 | 0 | 4 | 4 | 0 | 4 | 2 ( 6 Apr) | 12 | 3 | 5 Apr | 27 Apr | ||||
| 86. | Water Pipit | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (16 Mar) | 4 | 1 | 16 Mar | 16 Mar | ||||
| 87. | Chaffinch | 0 | 15 | 259 | 4 | 278 | 18 | 260 | 169 ( 9 Mar) | 52 | 13 | 10 Feb | 6 Apr | ||||
| 88. | Hawfinch | 0 | 0 | 23 | 8 | 31 | 2 | 29 | 8 (30 Mar) | 28 | 7 | 9 Mar | 26 Apr | ||||
| 89. | Greenfinch | 0 | 5 | 2 | 1 | 8 | 0 | 8 | 2 (13 Feb) | 28 | 7 | 10 Feb | 1 Apr | ||||
| 90. | Linnet | 0 | 1 | 10 | 18 | 29 | 2 | 27 | 12 ( 6 Apr) | 36 | 9 | 16 Feb | 13 Apr | ||||
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Mealy Redpoll | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (25 Feb) | 4 | 1 | 25 Feb | 25 Feb | ||||
| 92. | redpoll sp. | 0 | 4 | 1 | 0 | 5 | 3 | 2 | 4 (10 Feb) | 8 | 2 | 10 Feb | 3 Mar | ||||
| 93. | Goldfinch | 0 | 11 | 31 | 16 | 58 | 3 | 55 | 13 (29 Mar) | 60 | 15 | 13 Feb | 27 Apr | ||||
| 94. | Siskin | 0 | 132 | 27 | 4 | 163 | 85 | 78 | 76 (10 Feb) | 56 | 14 | 10 Feb | 26 Apr | ||||
| 95. | Reed Bunting | 0 | 6 | 2 | 0 | 8 | 0 | 8 | 3 (25 Feb) | 20 | 5 | 10 Feb | 9 Mar | ||||
| Other species | |||||||||||||||||
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Small Tortoiseshell | 0 | 0 | 0 | 3 | 3 | 1 | 2 | 3 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| 2. | Brimstone | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 2 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| 3. | European Peacock | 0 | 0 | 0 | 4 | 4 | 0 | 4 | 4 ( 6 Apr) | 4 | 1 | 6 Apr | 6 Apr | ||||
| Other species | |||||||||||||||||
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Bumblebee sp. | 0 | 1 | 6 | 0 | 7 | 2 | 5 | 3 ( 3 Mar) | 12 | 3 | 22 Feb | 9 Mar | ||||
| Species | Jan | Feb | Mar | Apr | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 182 | 3678 | 6966 | 3346 | 14172 | 1435 | 12737 | 100 | 25 | ||||||||
| Observation hours | 1:15 | 8:40 | 27:32 | 30:41 | 68:08 | ||||||||||||
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