Also present
Totals Willemstad 2024
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Canada Goose | 22 | 0 | 0 | 22 | 0 | 22 | 22 (27 Mar) | 7 | 1 | 27 Mar | 27 Mar | ||||
| 2. | Barnacle Goose | 66 | 5 | 58 | 129 | 0 | 129 | 49 ( 4 May) | 53 | 8 | 2 Mar | 4 May | ||||
| 3. | Greylag Goose | 5 | 0 | 15 | 20 | 0 | 20 | 8 (14 May) | 27 | 4 | 9 Mar | 14 May | ||||
| 4. | Tundra Bean Goose | 16 | 0 | 0 | 16 | 0 | 16 | 16 (19 Mar) | 7 | 1 | 19 Mar | 19 Mar | ||||
| 5. | Eurasian White-fronted Goose | 58 | 0 | 0 | 58 | 0 | 58 | 34 ( 2 Mar) | 20 | 3 | 2 Mar | 19 Mar | ||||
| 6. | Shelduck | 13 | 11 | 8 | 32 | 4 | 28 | 8 (12 May) | 40 | 6 | 8 Mar | 12 May | ||||
| 7. | Shoveler | 0 | 3 | 0 | 3 | 0 | 3 | 3 ( 8 Apr) | 7 | 1 | 8 Apr | 8 Apr | ||||
| 8. | Gadwall | 11 | 0 | 6 | 17 | 6 | 11 | 6 ( 8 Mar) | 20 | 3 | 8 Mar | 14 May | ||||
| 9. | Mallard | 0 | 2 | 2 | 4 | 0 | 4 | 2 (30 Apr) | 13 | 2 | 30 Apr | 12 May | ||||
| 10. | Pintail | 62 | 0 | 0 | 62 | 0 | 62 | 62 (19 Mar) | 7 | 1 | 19 Mar | 19 Mar | ||||
| 11. | Pochard | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 12. | Tufted Duck | 9 | 0 | 4 | 13 | 0 | 13 | 8 ( 9 Mar) | 20 | 3 | 9 Mar | 12 May | ||||
| 13. | Smew | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 2 Mar) | 7 | 1 | 2 Mar | 2 Mar | ||||
| 14. | Goosander | 7 | 0 | 0 | 7 | 0 | 7 | 6 ( 9 Mar) | 13 | 2 | 2 Mar | 9 Mar | ||||
| 15. | Red-breasted Merganser | 0 | 5 | 9 | 14 | 0 | 14 | 7 (14 May) | 20 | 3 | 30 Apr | 14 May | ||||
| 16. | Swift | 0 | 234 | 804 | 1038 | 0 | 1038 | 470 (12 May) | 53 | 8 | 22 Apr | 14 May | ||||
| 17. | Cuckoo | 0 | 1 | 5 | 6 | 0 | 6 | 4 (12 May) | 20 | 3 | 29 Apr | 12 May | ||||
| 18. | Stock Dove | 81 | 11 | 6 | 98 | 0 | 98 | 39 ( 9 Mar) | 80 | 12 | 2 Mar | 12 May | ||||
| 19. | Woodpigeon | 898 | 172 | 50 | 1120 | 0 | 1120 | 291 ( 9 Mar) | 100 | 15 | 2 Mar | 14 May | ||||
| 20. | Turtle Dove | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 21. | Collared Dove | 0 | 2 | 6 | 8 | 0 | 8 | 4 (12 May) | 20 | 3 | 22 Apr | 14 May | ||||
| 22. | Great Crested Grebe | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 23. | Oystercatcher | 0 | 13 | 13 | 26 | 6 | 20 | 10 (12 May) | 33 | 5 | 22 Apr | 14 May | ||||
| 24. | Avocet | 0 | 2 | 2 | 4 | 0 | 4 | 2 (27 Apr) | 13 | 2 | 27 Apr | 14 May | ||||
| 25. | Golden Plover | 36 | 0 | 0 | 36 | 0 | 36 | 36 (19 Mar) | 7 | 1 | 19 Mar | 19 Mar | ||||
| 26. | Ringed Plover | 0 | 2 | 3 | 5 | 0 | 5 | 3 (14 May) | 13 | 2 | 29 Apr | 14 May | ||||
| 27. | Little Ringed Plover | 3 | 2 | 1 | 6 | 0 | 6 | 1 ( 9 Mar) | 40 | 6 | 9 Mar | 2 May | ||||
| 28. | Lapwing | 163 | 0 | 2 | 165 | 0 | 165 | 110 ( 9 Mar) | 33 | 5 | 2 Mar | 12 May | ||||
| 29. | Whimbrel | 0 | 104 | 4 | 108 | 0 | 108 | 68 (22 Apr) | 40 | 6 | 22 Apr | 14 May | ||||
| 30. | Curlew | 2 | 8 | 0 | 10 | 0 | 10 | 8 (22 Apr) | 20 | 3 | 9 Mar | 22 Apr | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Black-tailed Godwit | 88 | 30 | 35 | 153 | 20 | 133 | 49 ( 8 Mar) | 67 | 10 | 8 Mar | 14 May | ||||
| 32. | Snipe | 18 | 0 | 0 | 18 | 0 | 18 | 17 (19 Mar) | 13 | 2 | 9 Mar | 19 Mar | ||||
| 33. | Common Sandpiper | 0 | 1 | 14 | 15 | 0 | 15 | 7 ( 2 May) | 27 | 4 | 29 Apr | 14 May | ||||
| 34. | Green Sandpiper | 5 | 2 | 0 | 7 | 0 | 7 | 4 (31 Mar) | 20 | 3 | 2 Mar | 30 Apr | ||||
| 35. | Wood Sandpiper | 0 | 2 | 31 | 33 | 0 | 33 | 14 ( 4 May) | 33 | 5 | 29 Apr | 14 May | ||||
| 36. | Redshank | 13 | 0 | 3 | 16 | 0 | 16 | 7 ( 9 Mar) | 27 | 4 | 8 Mar | 12 May | ||||
| 37. | Spotted Redshank | 0 | 2 | 2 | 4 | 0 | 4 | 1 (27 Apr) | 27 | 4 | 27 Apr | 12 May | ||||
| 38. | Greenshank | 0 | 9 | 18 | 27 | 0 | 27 | 11 (12 May) | 40 | 6 | 27 Apr | 14 May | ||||
| 39. | Ruff | 32 | 2 | 3 | 37 | 0 | 37 | 17 ( 9 Mar) | 33 | 5 | 8 Mar | 14 May | ||||
| 40. | wader sp. | 0 | 0 | 3 | 3 | 0 | 3 | 3 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 41. | Common Tern | 0 | 1 | 6 | 7 | 0 | 7 | 3 ( 4 May) | 20 | 3 | 22 Apr | 12 May | ||||
| 42. | Black-headed Gull | 145 | 1 | 3 | 149 | 0 | 149 | 94 ( 9 Mar) | 33 | 5 | 2 Mar | 12 May | ||||
| 43. | Mediterranean Gull | 6 | 9 | 0 | 15 | 0 | 15 | 6 ( 8 Apr) | 27 | 4 | 9 Mar | 27 Apr | ||||
| 44. | Common Gull | 36 | 6 | 2 | 44 | 0 | 44 | 17 (31 Mar) | 60 | 9 | 2 Mar | 12 May | ||||
| 45. | Caspian Gull | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 8 Mar) | 7 | 1 | 8 Mar | 8 Mar | ||||
| 46. | Herring Gull | 94 | 13 | 20 | 127 | 0 | 127 | 40 ( 9 Mar) | 93 | 14 | 2 Mar | 14 May | ||||
| 47. | Great Black-backed Gull | 18 | 5 | 0 | 23 | 0 | 23 | 11 (31 Mar) | 40 | 6 | 8 Mar | 27 Apr | ||||
| 48. | Lesser Black-backed Gull | 301 | 299 | 201 | 801 | 0 | 801 | 142 ( 9 Mar) | 100 | 15 | 2 Mar | 14 May | ||||
| 49. | White Stork | 1 | 0 | 1 | 2 | 1 | 1 | 1 ( 9 Mar) | 13 | 2 | 9 Mar | 12 May | ||||
| 50. | Cormorant | 91 | 65 | 67 | 223 | 0 | 223 | 64 (12 May) | 80 | 12 | 2 Mar | 12 May | ||||
| 51. | Spoonbill | 4 | 8 | 16 | 28 | 5 | 23 | 10 (12 May) | 53 | 8 | 31 Mar | 14 May | ||||
| 52. | Little Egret | 0 | 5 | 1 | 6 | 1 | 5 | 4 (29 Apr) | 20 | 3 | 8 Apr | 14 May | ||||
| 53. | Great White Egret | 12 | 7 | 2 | 21 | 3 | 18 | 10 ( 9 Mar) | 47 | 7 | 9 Mar | 12 May | ||||
| 54. | Grey Heron | 22 | 27 | 20 | 69 | 0 | 69 | 10 (30 Apr) | 93 | 14 | 2 Mar | 14 May | ||||
| 55. | Purple Heron | 0 | 1 | 1 | 2 | 0 | 2 | 1 (27 Apr) | 13 | 2 | 27 Apr | 12 May | ||||
| 56. | Sparrowhawk | 0 | 2 | 0 | 2 | 0 | 2 | 2 (22 Apr) | 7 | 1 | 22 Apr | 22 Apr | ||||
| 57. | Goshawk | 1 | 0 | 0 | 1 | 0 | 1 | 1 (27 Mar) | 7 | 1 | 27 Mar | 27 Mar | ||||
| 58. | Marsh Harrier | 2 | 8 | 5 | 15 | 1 | 14 | 4 (12 May) | 53 | 8 | 2 Mar | 14 May | ||||
| 59. | Hen Harrier | 0 | 0 | 2 | 2 | 0 | 2 | 1 (12 May) | 13 | 2 | 12 May | 14 May | ||||
| 60. | Red Kite | 2 | 0 | 0 | 2 | 0 | 2 | 2 ( 2 Mar) | 7 | 1 | 2 Mar | 2 Mar | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Common Buzzard | 10 | 4 | 3 | 17 | 1 | 16 | 6 ( 9 Mar) | 33 | 5 | 2 Mar | 14 May | ||||
| 62. | Great Spotted Woodpecker | 4 | 0 | 2 | 6 | 0 | 6 | 3 (31 Mar) | 27 | 4 | 9 Mar | 14 May | ||||
| 63. | Kestrel | 2 | 1 | 23 | 26 | 0 | 26 | 23 (12 May) | 27 | 4 | 8 Mar | 12 May | ||||
| 64. | Red-footed Falcon | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 7 | 1 | 2 May | 2 May | ||||
| 65. | Merlin | 1 | 0 | 2 | 3 | 0 | 3 | 2 (12 May) | 13 | 2 | 31 Mar | 12 May | ||||
| 66. | Hobby | 0 | 0 | 3 | 3 | 0 | 3 | 3 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 67. | Peregrine | 2 | 1 | 1 | 4 | 0 | 4 | 1 ( 9 Mar) | 27 | 4 | 9 Mar | 12 May | ||||
| 68. | Golden Oriole | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 69. | Jay | 2 | 17 | 1 | 20 | 8 | 12 | 11 (30 Apr) | 40 | 6 | 31 Mar | 14 May | ||||
| 70. | Jackdaw | 619 | 73 | 89 | 781 | 0 | 781 | 136 (19 Mar) | 100 | 15 | 2 Mar | 14 May | ||||
| 71. | Rook | 3 | 2 | 0 | 5 | 0 | 5 | 3 (31 Mar) | 13 | 2 | 31 Mar | 29 Apr | ||||
| 72. | Carrion Crow | 107 | 19 | 2 | 128 | 0 | 128 | 34 (27 Mar) | 67 | 10 | 8 Mar | 12 May | ||||
| 73. | Coal Tit | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 9 Mar) | 7 | 1 | 9 Mar | 9 Mar | ||||
| 74. | Blue Tit | 73 | 13 | 1 | 87 | 0 | 87 | 48 ( 9 Mar) | 67 | 10 | 2 Mar | 12 May | ||||
| 75. | Great Tit | 22 | 0 | 0 | 22 | 0 | 22 | 17 ( 9 Mar) | 13 | 2 | 9 Mar | 19 Mar | ||||
| 76. | Wood Lark | 57 | 0 | 1 | 58 | 0 | 58 | 33 ( 9 Mar) | 27 | 4 | 2 Mar | 12 May | ||||
| 77. | Skylark | 37 | 0 | 1 | 38 | 0 | 38 | 24 ( 9 Mar) | 20 | 3 | 2 Mar | 12 May | ||||
| 78. | Sand Martin | 4 | 18 | 22 | 44 | 0 | 44 | 15 (12 May) | 53 | 8 | 31 Mar | 14 May | ||||
| 79. | Swallow | 1 | 153 | 336 | 490 | 0 | 490 | 211 (12 May) | 67 | 10 | 31 Mar | 14 May | ||||
| 80. | House Martin | 0 | 4 | 23 | 27 | 0 | 27 | 17 (12 May) | 40 | 6 | 8 Apr | 14 May | ||||
| 81. | Chiffchaff | 1 | 0 | 0 | 1 | 0 | 1 | 1 (19 Mar) | 7 | 1 | 19 Mar | 19 Mar | ||||
| 82. | Starling | 3365 | 24 | 9 | 3398 | 0 | 3398 | 1709 ( 9 Mar) | 80 | 12 | 2 Mar | 2 May | ||||
| 83. | Song Thrush | 6 | 0 | 0 | 6 | 0 | 6 | 3 ( 9 Mar) | 13 | 2 | 9 Mar | 31 Mar | ||||
| 84. | Mistle Thrush | 11 | 0 | 0 | 11 | 0 | 11 | 9 ( 9 Mar) | 20 | 3 | 8 Mar | 19 Mar | ||||
| 85. | Blackbird | 0 | 1 | 1 | 2 | 0 | 2 | 1 (29 Apr) | 13 | 2 | 29 Apr | 14 May | ||||
| 86. | Fieldfare | 76 | 1 | 0 | 77 | 0 | 77 | 34 ( 9 Mar) | 33 | 5 | 8 Mar | 8 Apr | ||||
| 87. | Spotted Flycatcher | 0 | 0 | 4 | 4 | 0 | 4 | 4 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 88. | Black Redstart | 0 | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 7 | 1 | 29 Apr | 29 Apr | ||||
| 89. | Whinchat | 0 | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 7 | 1 | 29 Apr | 29 Apr | ||||
| 90. | Stonechat | 0 | 1 | 0 | 1 | 0 | 1 | 1 (29 Apr) | 7 | 1 | 29 Apr | 29 Apr | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Wheatear | 0 | 2 | 0 | 2 | 0 | 2 | 2 (29 Apr) | 7 | 1 | 29 Apr | 29 Apr | ||||
| 92. | Tree Sparrow | 5 | 2 | 0 | 7 | 0 | 7 | 2 ( 8 Mar) | 33 | 5 | 8 Mar | 30 Apr | ||||
| 93. | Dunnock | 2 | 0 | 0 | 2 | 0 | 2 | 2 (19 Mar) | 7 | 1 | 19 Mar | 19 Mar | ||||
| 94. | Blue-headed Wagtail | 5 | 6 | 12 | 23 | 0 | 23 | 10 (12 May) | 40 | 6 | 31 Mar | 14 May | ||||
| 95. | Grey-headed Wagtail | 0 | 0 | 14 | 14 | 0 | 14 | 9 (12 May) | 13 | 2 | 12 May | 14 May | ||||
| 96. | Yellow wagtail sp. | 0 | 114 | 169 | 283 | 0 | 283 | 142 (12 May) | 60 | 9 | 8 Apr | 14 May | ||||
| 97. | Grey Wagtail | 2 | 1 | 0 | 3 | 0 | 3 | 1 ( 2 Mar) | 20 | 3 | 2 Mar | 27 Apr | ||||
| 98. | White Wagtail | 27 | 2 | 0 | 29 | 0 | 29 | 26 ( 8 Mar) | 27 | 4 | 8 Mar | 30 Apr | ||||
| 99. | alba wagtail sp. | 165 | 1 | 0 | 166 | 0 | 166 | 133 ( 9 Mar) | 40 | 6 | 2 Mar | 29 Apr | ||||
| 100. | Meadow Pipit | 297 | 138 | 9 | 444 | 0 | 444 | 235 (31 Mar) | 80 | 12 | 2 Mar | 2 May | ||||
| 101. | Tree Pipit | 0 | 2 | 2 | 4 | 0 | 4 | 1 (22 Apr) | 27 | 4 | 22 Apr | 14 May | ||||
| 102. | Water Pipit | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 8 Mar) | 7 | 1 | 8 Mar | 8 Mar | ||||
| 103. | Chaffinch | 1993 | 15 | 3 | 2011 | 0 | 2011 | 1353 ( 9 Mar) | 87 | 13 | 2 Mar | 14 May | ||||
| 104. | Brambling | 12 | 0 | 0 | 12 | 0 | 12 | 12 (31 Mar) | 7 | 1 | 31 Mar | 31 Mar | ||||
| 105. | Hawfinch | 2 | 0 | 0 | 2 | 0 | 2 | 2 (31 Mar) | 7 | 1 | 31 Mar | 31 Mar | ||||
| 106. | Greenfinch | 34 | 5 | 14 | 53 | 0 | 53 | 18 ( 9 Mar) | 87 | 13 | 2 Mar | 14 May | ||||
| 107. | Linnet | 100 | 114 | 70 | 284 | 0 | 284 | 57 (31 Mar) | 93 | 14 | 8 Mar | 14 May | ||||
| 108. | Mealy Redpoll | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 8 Mar) | 7 | 1 | 8 Mar | 8 Mar | ||||
| 109. | redpoll sp. | 3 | 0 | 0 | 3 | 0 | 3 | 2 ( 9 Mar) | 13 | 2 | 2 Mar | 9 Mar | ||||
| 110. | Goldfinch | 16 | 16 | 28 | 60 | 0 | 60 | 23 (12 May) | 67 | 10 | 9 Mar | 14 May | ||||
| 111. | Siskin | 45 | 2 | 0 | 47 | 0 | 47 | 22 ( 9 Mar) | 40 | 6 | 8 Mar | 8 Apr | ||||
| 112. | Yellowhammer | 1 | 1 | 0 | 2 | 0 | 2 | 1 (31 Mar) | 13 | 2 | 31 Mar | 22 Apr | ||||
| 113. | Reed Bunting | 99 | 0 | 0 | 99 | 0 | 99 | 63 ( 9 Mar) | 33 | 5 | 2 Mar | 31 Mar | ||||
| Other species | ||||||||||||||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Small Tortoiseshell | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 2 May) | 7 | 1 | 2 May | 2 May | ||||
| 2. | Speckled Wood | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| 3. | Red Admiral | 1 | 0 | 2 | 3 | 0 | 3 | 2 (14 May) | 13 | 2 | 9 Mar | 14 May | ||||
| 4. | Painted Lady | 0 | 0 | 1 | 1 | 0 | 1 | 1 (12 May) | 7 | 1 | 12 May | 12 May | ||||
| Other species | ||||||||||||||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Bumblebee sp. | 18 | 0 | 63 | 81 | 0 | 81 | 35 (12 May) | 27 | 4 | 9 Mar | 14 May | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 9578 | 1837 | 2372 | 13787 | 56 | 13731 | 100 | 15 | ||||||||
| Observation hours | 22:00 | 17:00 | 19:30 | 58:30 | ||||||||||||
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