Also present
Totals Noordwijk 2025
| Species | Jan | Feb | Mar | Apr | May | Jun | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Dark-bellied Brent Goose | 20 | 17 | 286 | 627 | 1874 | 0 | 2824 | 87 | 2737 | 750 (18 May) | 30 | 40 | 1 Jan | 26 May | ||||
| 2. | Canada Goose | 0 | 1 | 52 | 24 | 9 | 105 | 191 | 42 | 149 | 77 ( 3 Jun) | 15 | 20 | 21 Feb | 3 Jun | ||||
| 3. | Barnacle Goose | 476 | 551 | 2338 | 1781 | 708 | 5 | 5859 | 878 | 4981 | 690 ( 8 Mar) | 36 | 48 | 11 Jan | 3 Jun | ||||
| 4. | Greylag Goose | 12 | 126 | 378 | 91 | 30 | 0 | 637 | 208 | 429 | 63 (18 Mar) | 41 | 55 | 4 Jan | 13 May | ||||
| 5. | Anser sp. | 0 | 0 | 130 | 0 | 0 | 0 | 130 | 0 | 130 | 130 ( 7 Mar) | 1 | 1 | 7 Mar | 7 Mar | ||||
| 6. | goose sp. | 135 | 205 | 96 | 167 | 0 | 0 | 603 | 200 | 403 | 200 (27 Feb) | 9 | 12 | 20 Jan | 18 Apr | ||||
| 7. | Domestic Goose | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 ( 8 Feb) | 1 | 1 | 8 Feb | 8 Feb | ||||
| 8. | Pink-footed Goose | 0 | 390 | 0 | 0 | 0 | 0 | 390 | 0 | 390 | 390 (26 Feb) | 1 | 1 | 26 Feb | 26 Feb | ||||
| 9. | Bean Goose sp. | 0 | 60 | 0 | 0 | 0 | 0 | 60 | 0 | 60 | 60 (26 Feb) | 1 | 1 | 26 Feb | 26 Feb | ||||
| 10. | Eurasian White-fronted Goose | 9 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 0 | 9 (20 Jan) | 1 | 1 | 20 Jan | 20 Jan | ||||
| 11. | Mute Swan | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 0 | 4 | 2 ( 3 May) | 1 | 2 | 3 May | 14 May | ||||
| 12. | Egyptian Goose | 31 | 46 | 146 | 116 | 20 | 0 | 359 | 147 | 212 | 38 (15 Apr) | 33 | 44 | 2 Jan | 20 May | ||||
| 13. | Shelduck | 22 | 13 | 74 | 106 | 267 | 24 | 506 | 101 | 405 | 49 (21 May) | 53 | 71 | 2 Jan | 6 Jun | ||||
| 14. | Garganey | 0 | 0 | 6 | 6 | 0 | 0 | 12 | 1 | 11 | 4 (18 Mar) | 4 | 5 | 18 Mar | 5 Apr | ||||
| 15. | Shoveler | 7 | 2 | 223 | 399 | 4 | 0 | 635 | 29 | 606 | 150 ( 4 Apr) | 23 | 31 | 2 Jan | 18 May | ||||
| 16. | Gadwall | 0 | 0 | 2 | 14 | 9 | 20 | 45 | 10 | 35 | 10 ( 1 Jun) | 10 | 14 | 10 Mar | 6 Jun | ||||
| 17. | Wigeon | 184 | 166 | 1430 | 31 | 1 | 0 | 1812 | 115 | 1697 | 915 (12 Mar) | 34 | 46 | 1 Jan | 11 May | ||||
| 18. | Mallard | 0 | 0 | 7 | 4 | 0 | 0 | 11 | 2 | 9 | 3 (20 Mar) | 4 | 6 | 15 Mar | 27 Apr | ||||
| 19. | Pintail | 0 | 7 | 113 | 48 | 0 | 0 | 168 | 0 | 168 | 54 (10 Mar) | 10 | 13 | 17 Feb | 9 Apr | ||||
| 20. | Teal | 13 | 40 | 1002 | 414 | 3 | 0 | 1472 | 39 | 1433 | 348 ( 8 Mar) | 34 | 45 | 4 Jan | 18 May | ||||
| 21. | duck sp. | 3 | 18 | 53 | 40 | 0 | 3 | 117 | 16 | 101 | 20 (18 Mar) | 12 | 16 | 8 Jan | 5 Jun | ||||
| 22. | Pochard | 7 | 4 | 4 | 0 | 0 | 0 | 15 | 11 | 4 | 7 (22 Jan) | 3 | 4 | 22 Jan | 8 Mar | ||||
| 23. | Tufted Duck | 1 | 0 | 10 | 4 | 1 | 2 | 18 | 6 | 12 | 6 (18 Mar) | 5 | 7 | 5 Jan | 3 Jun | ||||
| 24. | Scaup | 0 | 3 | 5 | 0 | 0 | 0 | 8 | 0 | 8 | 5 (14 Mar) | 1 | 2 | 28 Feb | 14 Mar | ||||
| 25. | Eider | 15 | 44 | 271 | 165 | 74 | 0 | 569 | 284 | 285 | 32 (25 Mar) | 54 | 72 | 3 Jan | 29 May | ||||
| 26. | Velvet Scoter | 5 | 0 | 7 | 5 | 0 | 0 | 17 | 4 | 13 | 6 (10 Mar) | 4 | 6 | 2 Jan | 9 Apr | ||||
| 27. | Common Scoter | 414 | 206 | 1265 | 1453 | 399 | 0 | 3737 | 1294 | 2443 | 241 ( 9 Apr) | 72 | 97 | 1 Jan | 29 May | ||||
| 28. | Goldeneye | 1 | 4 | 4 | 0 | 0 | 0 | 9 | 8 | 1 | 4 (10 Feb) | 2 | 3 | 23 Jan | 8 Mar | ||||
| 29. | Goosander | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 ( 2 Feb) | 1 | 1 | 2 Feb | 2 Feb | ||||
| 30. | Red-breasted Merganser | 17 | 19 | 133 | 114 | 7 | 1 | 291 | 85 | 206 | 18 ( 1 Apr) | 47 | 63 | 7 Jan | 5 Jun | ||||
| Species | Jan | Feb | Mar | Apr | May | Jun | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Swift | 0 | 0 | 0 | 0 | 17 | 3 | 20 | 19 | 1 | 9 (24 May) | 3 | 4 | 19 May | 5 Jun | ||||
| 32. | Swallow x House Martin (hybrid) | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 0 | 3 | 3 (14 May) | 1 | 1 | 14 May | 14 May | ||||
| 33. | Woodpigeon | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 4 Apr) | 1 | 1 | 4 Apr | 4 Apr | ||||
| 34. | Great Crested Grebe | 50 | 89 | 99 | 18 | 46 | 3 | 305 | 135 | 170 | 19 ( 4 Feb) | 51 | 69 | 2 Jan | 4 Jun | ||||
| 35. | Oystercatcher | 7 | 71 | 62 | 217 | 211 | 30 | 598 | 233 | 365 | 60 (12 May) | 63 | 84 | 1 Jan | 5 Jun | ||||
| 36. | Avocet | 0 | 0 | 82 | 6 | 6 | 0 | 94 | 0 | 94 | 31 ( 8 Mar) | 8 | 11 | 6 Mar | 19 May | ||||
| 37. | Grey Plover | 0 | 0 | 27 | 81 | 313 | 0 | 421 | 4 | 417 | 87 ( 4 May) | 18 | 24 | 11 Mar | 23 May | ||||
| 38. | Golden Plover | 1 | 0 | 8 | 31 | 0 | 0 | 40 | 1 | 39 | 30 ( 3 Apr) | 3 | 4 | 1 Jan | 15 Apr | ||||
| 39. | Ringed Plover | 0 | 0 | 17 | 3 | 559 | 0 | 579 | 1 | 578 | 152 (14 May) | 12 | 16 | 9 Mar | 19 May | ||||
| 40. | Lapwing | 0 | 2 | 0 | 0 | 1 | 0 | 3 | 1 | 2 | 2 (19 Feb) | 1 | 2 | 19 Feb | 24 May | ||||
| 41. | Whimbrel | 0 | 0 | 4 | 247 | 18 | 0 | 269 | 0 | 269 | 42 ( 8 Apr) | 16 | 22 | 31 Mar | 19 May | ||||
| 42. | Curlew | 0 | 1 | 11 | 73 | 4 | 0 | 89 | 1 | 88 | 13 ( 5 Apr) | 13 | 17 | 23 Feb | 18 May | ||||
| 43. | Bar-tailed Godwit | 0 | 0 | 0 | 29 | 89 | 0 | 118 | 0 | 118 | 41 ( 4 May) | 7 | 9 | 17 Apr | 19 May | ||||
| 44. | Black-tailed Godwit | 0 | 0 | 14 | 0 | 0 | 0 | 14 | 8 | 6 | 8 ( 8 Mar) | 1 | 2 | 8 Mar | 21 Mar | ||||
| 45. | Redshank | 0 | 0 | 6 | 13 | 7 | 0 | 26 | 1 | 25 | 11 ( 4 Apr) | 8 | 11 | 6 Mar | 19 May | ||||
| 46. | Greenshank | 0 | 0 | 0 | 0 | 5 | 0 | 5 | 0 | 5 | 3 ( 9 May) | 2 | 3 | 9 May | 12 May | ||||
| 47. | Turnstone | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 0 | 4 | 3 ( 6 May) | 1 | 2 | 6 May | 22 May | ||||
| 48. | Knot | 0 | 0 | 12 | 39 | 390 | 0 | 441 | 0 | 441 | 187 ( 5 May) | 9 | 12 | 11 Mar | 21 May | ||||
| 49. | wader sp. | 0 | 0 | 45 | 82 | 57 | 0 | 184 | 0 | 184 | 38 ( 5 May) | 12 | 16 | 11 Mar | 23 May | ||||
| 50. | small wader | 0 | 0 | 0 | 16 | 418 | 0 | 434 | 7 | 427 | 121 (18 May) | 12 | 16 | 19 Apr | 23 May | ||||
| 51. | large wader | 0 | 0 | 0 | 0 | 10 | 0 | 10 | 0 | 10 | 10 ( 4 May) | 1 | 1 | 4 May | 4 May | ||||
| 52. | Sanderling | 153 | 34 | 60 | 22 | 1028 | 0 | 1297 | 90 | 1207 | 276 (19 May) | 25 | 34 | 3 Jan | 23 May | ||||
| 53. | Dunlin | 0 | 6 | 1202 | 813 | 194 | 0 | 2215 | 3 | 2212 | 297 (14 Mar) | 28 | 38 | 18 Feb | 18 May | ||||
| 54. | Calidris sp. | 0 | 0 | 6 | 0 | 40 | 0 | 46 | 0 | 46 | 32 (19 May) | 3 | 4 | 15 Mar | 21 May | ||||
| 55. | Little Tern | 0 | 0 | 0 | 171 | 62 | 0 | 233 | 7 | 226 | 70 (26 Apr) | 13 | 17 | 9 Apr | 29 May | ||||
| 56. | Black Tern | 0 | 0 | 0 | 57 | 72 | 0 | 129 | 4 | 125 | 27 (21 Apr) | 12 | 16 | 8 Apr | 20 May | ||||
| 57. | Arctic Tern | 0 | 0 | 0 | 18 | 123 | 0 | 141 | 0 | 141 | 82 (14 May) | 7 | 9 | 9 Apr | 21 May | ||||
| 58. | Common/Arctic Tern | 0 | 0 | 0 | 243 | 1800 | 19 | 2062 | 49 | 2013 | 353 ( 6 May) | 16 | 22 | 8 Apr | 6 Jun | ||||
| 59. | Common Tern | 0 | 0 | 0 | 4494 | 6629 | 715 | 11838 | 2624 | 9214 | 1575 ( 4 May) | 37 | 49 | 3 Apr | 6 Jun | ||||
| 60. | Sandwich Tern | 0 | 0 | 24 | 3025 | 1334 | 134 | 4517 | 723 | 3794 | 379 ( 9 Apr) | 43 | 58 | 18 Mar | 6 Jun | ||||
| Species | Jan | Feb | Mar | Apr | May | Jun | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Little Gull | 1 | 1 | 34 | 637 | 3 | 0 | 676 | 2 | 674 | 264 (21 Apr) | 11 | 15 | 28 Jan | 6 May | ||||
| 62. | Kittiwake | 94 | 0 | 0 | 0 | 10 | 2 | 106 | 96 | 10 | 42 ( 8 Jan) | 7 | 9 | 3 Jan | 1 Jun | ||||
| 63. | Black-headed Gull | 1202 | 683 | 1684 | 1568 | 1425 | 44 | 6606 | 1814 | 4792 | 566 (12 May) | 96 | 129 | 1 Jan | 6 Jun | ||||
| 64. | Mediterranean Gull | 0 | 0 | 1 | 3 | 1 | 5 | 10 | 4 | 6 | 3 ( 1 Jun) | 4 | 6 | 21 Mar | 5 Jun | ||||
| 65. | Common Gull | 301 | 150 | 671 | 1883 | 238 | 13 | 3256 | 601 | 2655 | 790 (12 Apr) | 89 | 119 | 1 Jan | 5 Jun | ||||
| 66. | Caspian Gull | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 ( 9 Apr) | 1 | 1 | 9 Apr | 9 Apr | ||||
| 67. | Herring Gull | 517 | 537 | 665 | 436 | 99 | 123 | 2377 | 971 | 1406 | 149 (25 Jan) | 81 | 109 | 1 Jan | 6 Jun | ||||
| 68. | Great Black-backed Gull | 93 | 19 | 23 | 21 | 11 | 3 | 170 | 74 | 96 | 28 ( 1 Jan) | 48 | 64 | 1 Jan | 4 Jun | ||||
| 69. | Lesser Black-backed Gull | 14 | 172 | 1338 | 443 | 252 | 234 | 2453 | 448 | 2005 | 679 ( 9 Mar) | 76 | 102 | 1 Jan | 6 Jun | ||||
| 70. | Laridae sp. | 0 | 0 | 54 | 0 | 0 | 0 | 54 | 29 | 25 | 54 ( 6 Mar) | 1 | 1 | 6 Mar | 6 Mar | ||||
| 71. | Arctic Skua | 0 | 0 | 0 | 1 | 3 | 0 | 4 | 0 | 4 | 3 (18 May) | 1 | 2 | 26 Apr | 18 May | ||||
| 72. | Razorbill/Guillemot | 4 | 0 | 0 | 0 | 1 | 0 | 5 | 4 | 1 | 2 ( 8 Jan) | 3 | 4 | 7 Jan | 22 May | ||||
| 73. | Guillemot | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 (14 Jan) | 1 | 1 | 14 Jan | 14 Jan | ||||
| 74. | Red-throated Diver | 1008 | 248 | 92 | 43 | 4 | 0 | 1395 | 1177 | 218 | 337 ( 4 Jan) | 62 | 83 | 1 Jan | 18 May | ||||
| 75. | Black-throated Diver | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 2 | 1 (31 Mar) | 1 | 2 | 31 Mar | 19 Apr | ||||
| 76. | diver sp. | 45 | 11 | 0 | 1 | 0 | 0 | 57 | 54 | 3 | 18 ( 2 Jan) | 7 | 10 | 2 Jan | 14 Apr | ||||
| 77. | Fulmar | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 6 Jun) | 1 | 1 | 6 Jun | 6 Jun | ||||
| 78. | Manx Shearwater | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (10 Apr) | 1 | 1 | 10 Apr | 10 Apr | ||||
| 79. | Gannet | 338 | 38 | 89 | 10 | 21 | 5 | 501 | 351 | 150 | 67 ( 1 Jan) | 48 | 64 | 1 Jan | 6 Jun | ||||
| 80. | Cormorant | 10782 | 1267 | 1053 | 1063 | 2211 | 1085 | 17461 | 6510 | 10951 | 2187 (12 Jan) | 98 | 131 | 1 Jan | 6 Jun | ||||
| 81. | Spoonbill | 0 | 0 | 1 | 54 | 11 | 0 | 66 | 0 | 66 | 27 ( 6 Apr) | 5 | 7 | 21 Mar | 13 May | ||||
| 82. | Grey Heron | 1 | 1 | 5 | 31 | 12 | 1 | 51 | 2 | 49 | 12 ( 3 Apr) | 13 | 17 | 13 Jan | 3 Jun | ||||
| 83. | Marsh Harrier | 0 | 0 | 2 | 3 | 0 | 0 | 5 | 0 | 5 | 1 (18 Mar) | 4 | 5 | 18 Mar | 28 Apr | ||||
| 84. | Merlin | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 1 ( 3 May) | 1 | 2 | 3 May | 20 May | ||||
| 85. | Peregrine | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 5 Apr) | 1 | 1 | 5 Apr | 5 Apr | ||||
| 86. | Rook | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (12 Apr) | 1 | 1 | 12 Apr | 12 Apr | ||||
| 87. | Sand Martin | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 9 May) | 1 | 1 | 9 May | 9 May | ||||
| 88. | Swallow | 0 | 0 | 0 | 29 | 71 | 6 | 106 | 25 | 81 | 19 (14 May) | 18 | 24 | 3 Apr | 5 Jun | ||||
| 89. | House Martin | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (24 May) | 1 | 1 | 24 May | 24 May | ||||
| 90. | Starling | 0 | 3 | 408 | 0 | 0 | 0 | 411 | 0 | 411 | 341 (21 Mar) | 4 | 6 | 28 Feb | 21 Mar | ||||
| Species | Jan | Feb | Mar | Apr | May | Jun | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Yellow wagtail sp. | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | 2 | 1 (21 Apr) | 1 | 2 | 21 Apr | 19 May | ||||
| 92. | White Wagtail | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 2 | 1 ( 3 Apr) | 1 | 2 | 3 Apr | 9 Apr | ||||
| 93. | alba wagtail sp. | 0 | 0 | 12 | 0 | 0 | 0 | 12 | 0 | 12 | 7 (18 Mar) | 2 | 3 | 8 Mar | 22 Mar | ||||
| Other species | |||||||||||||||||||
| Species | Jan | Feb | Mar | Apr | May | Jun | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Harbour Porpoise | 2 | 7 | 8 | 8 | 0 | 0 | 25 | 11 | 14 | 3 (10 Mar) | 10 | 14 | 12 Jan | 28 Apr | ||||
| 2. | Grey seal | 0 | 1 | 2 | 1 | 1 | 0 | 5 | 4 | 1 | 2 ( 1 Mar) | 3 | 4 | 19 Feb | 4 May | ||||
| 3. | Common Seal | 0 | 1 | 0 | 2 | 0 | 0 | 3 | 1 | 2 | 2 (21 Apr) | 1 | 2 | 9 Feb | 21 Apr | ||||
| Species | Jan | Feb | Mar | Apr | May | Jun | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 15986 | 5267 | 15857 | 21553 | 21229 | 2586 | 82478 | 19669 | 62809 | 100 | 134 | ||||||||
| Observation hours | 27:37 | 29:25 | 43:43 | 40:03 | 35:40 | 8:20 | 184:48 | ||||||||||||
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