Also present
Totals Vlaardingen Foppenplas 2025
| Species | Feb | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Barnacle Goose | 1072 | 2672 | 4100 | 2730 | 10574 | 0 | 10574 | 1596 ( 6 Apr) | 52 | 16 | 23 Feb | 18 May | ||||
| 2. | Greylag Goose | 0 | 13 | 58 | 120 | 191 | 0 | 191 | 113 (11 May) | 19 | 6 | 9 Mar | 11 May | ||||
| 3. | Pink-footed Goose | 17 | 0 | 0 | 0 | 17 | 0 | 17 | 17 (23 Feb) | 3 | 1 | 23 Feb | 23 Feb | ||||
| 4. | Eurasian White-fronted Goose | 1727 | 462 | 3 | 0 | 2192 | 0 | 2192 | 1727 (23 Feb) | 29 | 9 | 23 Feb | 27 Apr | ||||
| 5. | Mute Swan | 2 | 5 | 4 | 34 | 45 | 1 | 44 | 14 ( 4 May) | 26 | 8 | 23 Feb | 11 May | ||||
| 6. | Shelduck | 7 | 10 | 29 | 25 | 71 | 7 | 64 | 18 ( 1 May) | 42 | 13 | 7 Feb | 18 May | ||||
| 7. | Ruddy Shelduck | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (23 Feb) | 3 | 1 | 23 Feb | 23 Feb | ||||
| 8. | Garganey | 0 | 0 | 2 | 1 | 3 | 0 | 3 | 1 (19 Apr) | 10 | 3 | 19 Apr | 1 May | ||||
| 9. | Shoveler | 5 | 53 | 185 | 13 | 256 | 0 | 256 | 121 ( 3 Apr) | 52 | 16 | 23 Feb | 10 May | ||||
| 10. | Gadwall | 0 | 23 | 17 | 5 | 45 | 0 | 45 | 16 ( 2 Mar) | 23 | 7 | 2 Mar | 1 May | ||||
| 11. | Wigeon | 1020 | 390 | 12 | 0 | 1422 | 721 | 701 | 721 ( 7 Feb) | 35 | 11 | 7 Feb | 13 Apr | ||||
| 12. | Mallard | 0 | 13 | 21 | 8 | 42 | 0 | 42 | 12 ( 3 Apr) | 23 | 7 | 2 Mar | 18 May | ||||
| 13. | Teal | 15 | 0 | 50 | 17 | 82 | 0 | 82 | 50 (26 Apr) | 13 | 4 | 23 Feb | 10 May | ||||
| 14. | Pochard | 0 | 1 | 2 | 0 | 3 | 0 | 3 | 2 (20 Apr) | 6 | 2 | 2 Mar | 20 Apr | ||||
| 15. | Tufted Duck | 70 | 12 | 85 | 0 | 167 | 0 | 167 | 70 (23 Feb) | 19 | 6 | 23 Feb | 26 Apr | ||||
| 16. | Swift | 0 | 0 | 59 | 383 | 442 | 0 | 442 | 167 (18 May) | 39 | 12 | 13 Apr | 18 May | ||||
| 17. | Cuckoo | 0 | 0 | 1 | 6 | 7 | 0 | 7 | 5 ( 1 May) | 10 | 3 | 26 Apr | 10 May | ||||
| 18. | Stock Dove | 16 | 21 | 38 | 19 | 94 | 0 | 94 | 16 (23 Feb) | 68 | 21 | 23 Feb | 18 May | ||||
| 19. | Woodpigeon | 2 | 56 | 24 | 5 | 87 | 0 | 87 | 15 ( 9 Mar) | 61 | 19 | 23 Feb | 1 May | ||||
| 20. | Great Crested Grebe | 0 | 0 | 5 | 4 | 9 | 0 | 9 | 4 ( 4 Apr) | 13 | 4 | 4 Apr | 11 May | ||||
| 21. | Oystercatcher | 0 | 1 | 6 | 14 | 21 | 0 | 21 | 11 (18 May) | 16 | 5 | 30 Mar | 18 May | ||||
| 22. | Avocet | 0 | 3 | 0 | 0 | 3 | 0 | 3 | 3 (20 Mar) | 3 | 1 | 20 Mar | 20 Mar | ||||
| 23. | Golden Plover | 201 | 22 | 5 | 0 | 228 | 0 | 228 | 201 (23 Feb) | 13 | 4 | 23 Feb | 6 Apr | ||||
| 24. | Ringed Plover | 1 | 1 | 0 | 4 | 6 | 0 | 6 | 2 (10 May) | 13 | 4 | 23 Feb | 11 May | ||||
| 25. | Little Ringed Plover | 0 | 1 | 4 | 1 | 6 | 0 | 6 | 2 ( 3 Apr) | 13 | 4 | 20 Mar | 1 May | ||||
| 26. | Lapwing | 1 | 129 | 17 | 8 | 155 | 0 | 155 | 91 ( 2 Mar) | 35 | 11 | 23 Feb | 10 May | ||||
| 27. | Whimbrel | 0 | 0 | 121 | 53 | 174 | 0 | 174 | 36 (19 Apr) | 35 | 11 | 4 Apr | 8 May | ||||
| 28. | Curlew | 59 | 35 | 94 | 1 | 189 | 0 | 189 | 59 (23 Feb) | 55 | 17 | 23 Feb | 1 May | ||||
| 29. | Bar-tailed Godwit | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 2 (26 Apr) | 3 | 1 | 26 Apr | 26 Apr | ||||
| 30. | Black-tailed Godwit | 10 | 12 | 52 | 7 | 81 | 0 | 81 | 16 ( 5 Apr) | 55 | 17 | 23 Feb | 18 May | ||||
| Species | Feb | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Snipe | 4 | 15 | 18 | 2 | 39 | 0 | 39 | 11 (15 Mar) | 32 | 10 | 23 Feb | 10 May | ||||
| 32. | Common Sandpiper | 0 | 0 | 18 | 4 | 22 | 0 | 22 | 6 ( 3 Apr) | 23 | 7 | 3 Apr | 11 May | ||||
| 33. | Green Sandpiper | 0 | 3 | 51 | 1 | 55 | 0 | 55 | 21 ( 3 Apr) | 23 | 7 | 13 Mar | 1 May | ||||
| 34. | Wood Sandpiper | 0 | 0 | 2 | 4 | 6 | 0 | 6 | 2 (26 Apr) | 13 | 4 | 26 Apr | 11 May | ||||
| 35. | Redshank | 0 | 32 | 45 | 11 | 88 | 0 | 88 | 12 ( 5 Apr) | 61 | 19 | 2 Mar | 10 May | ||||
| 36. | Spotted Redshank | 0 | 0 | 1 | 2 | 3 | 0 | 3 | 2 ( 1 May) | 6 | 2 | 3 Apr | 1 May | ||||
| 37. | Greenshank | 0 | 0 | 9 | 11 | 20 | 0 | 20 | 6 ( 1 May) | 26 | 8 | 3 Apr | 11 May | ||||
| 38. | Ruff | 0 | 8 | 39 | 14 | 61 | 0 | 61 | 14 ( 1 May) | 23 | 7 | 15 Mar | 1 May | ||||
| 39. | wader sp. | 0 | 0 | 3 | 8 | 11 | 0 | 11 | 8 ( 1 May) | 6 | 2 | 5 Apr | 1 May | ||||
| 40. | Temminck's Stint | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 1 May) | 3 | 1 | 1 May | 1 May | ||||
| 41. | Dunlin | 0 | 5 | 0 | 0 | 5 | 0 | 5 | 5 (13 Mar) | 3 | 1 | 13 Mar | 13 Mar | ||||
| 42. | Black Tern | 0 | 0 | 0 | 10 | 10 | 0 | 10 | 10 ( 7 May) | 3 | 1 | 7 May | 7 May | ||||
| 43. | Common Tern | 0 | 1 | 77 | 56 | 134 | 0 | 134 | 36 (27 Apr) | 45 | 14 | 27 Mar | 18 May | ||||
| 44. | Black-headed Gull | 5019 | 255 | 460 | 188 | 5922 | 18 | 5904 | 5001 (23 Feb) | 77 | 24 | 7 Feb | 18 May | ||||
| 45. | Mediterranean Gull | 1 | 1 | 23 | 3 | 28 | 0 | 28 | 10 (27 Apr) | 23 | 7 | 23 Feb | 1 May | ||||
| 46. | Common Gull | 175 | 267 | 83 | 29 | 554 | 0 | 554 | 175 (23 Feb) | 68 | 21 | 23 Feb | 18 May | ||||
| 47. | Caspian Gull | 1 | 2 | 4 | 0 | 7 | 0 | 7 | 2 ( 3 Apr) | 19 | 6 | 23 Feb | 6 Apr | ||||
| 48. | Herring Gull | 29 | 44 | 105 | 10 | 188 | 0 | 188 | 73 (13 Apr) | 68 | 21 | 23 Feb | 11 May | ||||
| 49. | Yellow-legged Gull | 0 | 1 | 4 | 1 | 6 | 0 | 6 | 1 (30 Mar) | 19 | 6 | 30 Mar | 11 May | ||||
| 50. | Great Black-backed Gull | 0 | 2 | 7 | 0 | 9 | 0 | 9 | 2 ( 3 Apr) | 19 | 6 | 15 Mar | 13 Apr | ||||
| 51. | Lesser Black-backed Gull | 85 | 845 | 2626 | 867 | 4423 | 0 | 4423 | 886 ( 6 Apr) | 77 | 24 | 7 Feb | 18 May | ||||
| 52. | White Stork | 0 | 0 | 2 | 1 | 3 | 0 | 3 | 2 ( 5 Apr) | 6 | 2 | 5 Apr | 11 May | ||||
| 53. | Cormorant | 33 | 45 | 95 | 47 | 220 | 0 | 220 | 60 (13 Apr) | 52 | 16 | 23 Feb | 18 May | ||||
| 54. | Glossy Ibis | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 7 May) | 3 | 1 | 7 May | 7 May | ||||
| 55. | Spoonbill | 12 | 0 | 41 | 11 | 64 | 1 | 63 | 12 (23 Feb) | 45 | 14 | 23 Feb | 11 May | ||||
| 56. | Bittern | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 1 May) | 3 | 1 | 1 May | 1 May | ||||
| 57. | Great White Egret | 1 | 3 | 5 | 2 | 11 | 0 | 11 | 3 ( 5 Apr) | 26 | 8 | 23 Feb | 13 May | ||||
| 58. | Grey Heron | 1 | 5 | 55 | 8 | 69 | 0 | 69 | 18 (13 Apr) | 39 | 12 | 23 Feb | 10 May | ||||
| 59. | Purple Heron | 0 | 0 | 5 | 3 | 8 | 0 | 8 | 2 (12 Apr) | 16 | 5 | 12 Apr | 11 May | ||||
| 60. | Sparrowhawk | 0 | 2 | 8 | 2 | 12 | 0 | 12 | 3 ( 5 Apr) | 26 | 8 | 23 Mar | 11 May | ||||
| Species | Feb | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Goshawk | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (13 Apr) | 3 | 1 | 13 Apr | 13 Apr | ||||
| 62. | Marsh Harrier | 1 | 4 | 34 | 21 | 60 | 0 | 60 | 9 ( 5 Apr) | 58 | 18 | 23 Feb | 13 May | ||||
| 63. | Hen Harrier | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (15 Mar) | 3 | 1 | 15 Mar | 15 Mar | ||||
| 64. | Montagu's Harrier | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (10 May) | 3 | 1 | 10 May | 10 May | ||||
| 65. | harrier sp. | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 4 Apr) | 3 | 1 | 4 Apr | 4 Apr | ||||
| 66. | Black Kite | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 1 (20 Apr) | 6 | 2 | 20 Apr | 11 May | ||||
| 67. | White-tailed Eagle | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (23 Feb) | 3 | 1 | 23 Feb | 23 Feb | ||||
| 68. | Common Buzzard | 5 | 4 | 20 | 3 | 32 | 0 | 32 | 9 ( 1 Apr) | 42 | 13 | 23 Feb | 11 May | ||||
| 69. | Kingfisher | 0 | 1 | 2 | 0 | 3 | 0 | 3 | 1 (15 Mar) | 10 | 3 | 15 Mar | 27 Apr | ||||
| 70. | Great Spotted Woodpecker | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 1 Apr) | 3 | 1 | 1 Apr | 1 Apr | ||||
| 71. | Green Woodpecker | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 1 ( 1 May) | 6 | 2 | 1 May | 13 May | ||||
| 72. | Kestrel | 1 | 1 | 7 | 0 | 9 | 0 | 9 | 2 ( 6 Apr) | 23 | 7 | 23 Feb | 20 Apr | ||||
| 73. | Merlin | 0 | 0 | 2 | 1 | 3 | 0 | 3 | 1 ( 6 Apr) | 10 | 3 | 6 Apr | 1 May | ||||
| 74. | Hobby | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 1 (26 Apr) | 6 | 2 | 26 Apr | 1 May | ||||
| 75. | Peregrine | 2 | 2 | 0 | 0 | 4 | 0 | 4 | 2 ( 5 Mar) | 10 | 3 | 7 Feb | 5 Mar | ||||
| 76. | Jackdaw | 5 | 28 | 186 | 0 | 219 | 0 | 219 | 175 ( 3 Apr) | 32 | 10 | 23 Feb | 20 Apr | ||||
| 77. | Rook | 6 | 7 | 8 | 4 | 25 | 0 | 25 | 6 (23 Feb) | 29 | 9 | 23 Feb | 1 May | ||||
| 78. | Carrion Crow | 0 | 14 | 12 | 2 | 28 | 0 | 28 | 10 (27 Mar) | 23 | 7 | 15 Mar | 1 May | ||||
| 79. | Raven | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 (11 May) | 3 | 1 | 11 May | 11 May | ||||
| 80. | Blue Tit | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 2 (12 Apr) | 3 | 1 | 12 Apr | 12 Apr | ||||
| 81. | Great Tit | 0 | 3 | 0 | 1 | 4 | 0 | 4 | 2 ( 2 Mar) | 10 | 3 | 2 Mar | 10 May | ||||
| 82. | Bearded Tit | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 1 Apr) | 3 | 1 | 1 Apr | 1 Apr | ||||
| 83. | Skylark | 18 | 10 | 4 | 1 | 33 | 0 | 33 | 18 (23 Feb) | 32 | 10 | 23 Feb | 1 May | ||||
| 84. | lark sp. | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (20 Apr) | 3 | 1 | 20 Apr | 20 Apr | ||||
| 85. | Sand Martin | 0 | 0 | 606 | 10 | 616 | 0 | 616 | 440 (13 Apr) | 39 | 12 | 5 Apr | 18 May | ||||
| 86. | Swallow | 0 | 8 | 196 | 105 | 309 | 0 | 309 | 51 ( 6 Apr) | 65 | 20 | 23 Mar | 18 May | ||||
| 87. | House Martin | 0 | 0 | 15 | 5 | 20 | 0 | 20 | 6 (20 Apr) | 19 | 6 | 5 Apr | 8 May | ||||
| 88. | Chiffchaff | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 ( 9 Mar) | 3 | 1 | 9 Mar | 9 Mar | ||||
| 89. | Savi's Warbler | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (27 Mar) | 3 | 1 | 27 Mar | 27 Mar | ||||
| 90. | Garden Warbler | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (19 Apr) | 3 | 1 | 19 Apr | 19 Apr | ||||
| Species | Feb | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Whitethroat | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 1 May) | 3 | 1 | 1 May | 1 May | ||||
| 92. | Starling | 0 | 106 | 98 | 0 | 204 | 0 | 204 | 52 ( 6 Apr) | 26 | 8 | 5 Mar | 20 Apr | ||||
| 93. | Redwing | 0 | 145 | 34 | 0 | 179 | 0 | 179 | 145 (27 Mar) | 10 | 3 | 27 Mar | 3 Apr | ||||
| 94. | Fieldfare | 0 | 27 | 5 | 0 | 32 | 0 | 32 | 18 ( 5 Mar) | 10 | 3 | 5 Mar | 1 Apr | ||||
| 95. | Ring Ouzel | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 1 ( 3 Apr) | 6 | 2 | 3 Apr | 13 Apr | ||||
| 96. | thrush sp. | 0 | 0 | 8 | 0 | 8 | 0 | 8 | 8 ( 4 Apr) | 3 | 1 | 4 Apr | 4 Apr | ||||
| 97. | Robin | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 ( 5 Apr) | 3 | 1 | 5 Apr | 5 Apr | ||||
| 98. | Stonechat | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 (20 Apr) | 3 | 1 | 20 Apr | 20 Apr | ||||
| 99. | Wheatear | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 1 ( 6 Apr) | 6 | 2 | 6 Apr | 10 May | ||||
| 100. | Blue-headed Wagtail | 0 | 0 | 36 | 11 | 47 | 0 | 47 | 15 (13 Apr) | 35 | 11 | 4 Apr | 13 May | ||||
| 101. | Yellow Wagtail (flavissima) | 0 | 0 | 0 | 9 | 9 | 0 | 9 | 9 (11 May) | 3 | 1 | 11 May | 11 May | ||||
| 102. | Yellow wagtail sp. | 0 | 0 | 3 | 4 | 7 | 0 | 7 | 4 (10 May) | 10 | 3 | 5 Apr | 10 May | ||||
| 103. | White Wagtail | 0 | 15 | 17 | 1 | 33 | 0 | 33 | 6 ( 9 Mar) | 48 | 15 | 5 Mar | 10 May | ||||
| 104. | alba wagtail sp. | 0 | 4 | 0 | 0 | 4 | 0 | 4 | 4 (23 Mar) | 3 | 1 | 23 Mar | 23 Mar | ||||
| 105. | Pied Wagtail | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (13 Mar) | 3 | 1 | 13 Mar | 13 Mar | ||||
| 106. | Meadow Pipit | 15 | 17 | 261 | 11 | 304 | 0 | 304 | 82 ( 6 Apr) | 61 | 19 | 23 Feb | 1 May | ||||
| 107. | Tree Pipit | 0 | 0 | 4 | 0 | 4 | 0 | 4 | 2 ( 6 Apr) | 10 | 3 | 4 Apr | 12 Apr | ||||
| 108. | Water Pipit | 0 | 3 | 0 | 0 | 3 | 0 | 3 | 2 ( 9 Mar) | 6 | 2 | 6 Mar | 9 Mar | ||||
| 109. | Chaffinch | 0 | 7 | 4 | 0 | 11 | 0 | 11 | 4 ( 9 Mar) | 13 | 4 | 5 Mar | 5 Apr | ||||
| 110. | Greenfinch | 0 | 4 | 2 | 23 | 29 | 0 | 29 | 16 (11 May) | 23 | 7 | 20 Mar | 11 May | ||||
| 111. | Linnet | 15 | 8 | 128 | 14 | 165 | 15 | 150 | 43 ( 5 Apr) | 55 | 17 | 7 Feb | 10 May | ||||
| 112. | Goldfinch | 6 | 7 | 9 | 0 | 22 | 0 | 22 | 6 (23 Feb) | 26 | 8 | 23 Feb | 20 Apr | ||||
| 113. | Reed Bunting | 7 | 39 | 7 | 0 | 53 | 0 | 53 | 31 ( 9 Mar) | 29 | 9 | 23 Feb | 19 Apr | ||||
| Species | Feb | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 9669 | 5939 | 10505 | 4990 | 31103 | 763 | 30340 | 100 | 31 | ||||||||
| Observation hours | 6:16 | 23:52 | 63:25 | 23:59 | 117:32 | ||||||||||||
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