Totals Rottumeroog 2017
| Year | |
| Period | |
| count-field | |
| Also present | |
| Species | Apr | May | Jun | Jul | Aug | Sep | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Dark-bellied Brent Goose | 27 | 526 | 0 | 0 | 0 | 0 | 553 | 0 | 553 | 324 (17 May) | 32 | 9 | 14 Apr | 18 May | ||||
| 2. | Barnacle Goose | 5 | 29258 | 0 | 0 | 0 | 0 | 29263 | 0 | 29263 | 12663 (13 May) | 39 | 11 | 16 Apr | 18 May | ||||
| 3. | Greylag Goose | 0 | 752 | 0 | 77 | 109 | 12 | 950 | 182 | 768 | 245 (12 May) | 46 | 13 | 11 May | 10 Sep | ||||
| 4. | Eurasian White-fronted Goose | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (11 May) | 4 | 1 | 11 May | 11 May | ||||
| 5. | Mute Swan | 0 | 13 | 0 | 9 | 8 | 0 | 30 | 0 | 30 | 13 (11 May) | 11 | 3 | 11 May | 27 Aug | ||||
| 6. | Egyptian Goose | 0 | 3 | 0 | 1 | 3 | 0 | 7 | 4 | 3 | 3 (15 May) | 14 | 4 | 15 May | 26 Aug | ||||
| 7. | Shelduck | 0 | 44 | 0 | 7 | 4 | 23 | 78 | 30 | 48 | 23 (10 Sep) | 32 | 9 | 10 May | 10 Sep | ||||
| 8. | Ruddy Shelduck | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (9 Jul) | 4 | 1 | 9 Jul | 9 Jul | ||||
| 9. | Shoveler | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 0 | 4 (10 Sep) | 4 | 1 | 10 Sep | 10 Sep | ||||
| 10. | Wigeon | 0 | 5 | 0 | 0 | 4 | 55 | 64 | 59 | 5 | 55 (9 Sep) | 11 | 3 | 11 May | 9 Sep | ||||
| 11. | Mallard | 0 | 2 | 0 | 2 | 0 | 0 | 4 | 2 | 2 | 2 (12 May) | 7 | 2 | 12 May | 31 Jul | ||||
| 12. | Pintail | 0 | 0 | 0 | 1 | 0 | 15 | 16 | 16 | 0 | 15 (9 Sep) | 7 | 2 | 9 Jul | 9 Sep | ||||
| 13. | Teal | 0 | 0 | 0 | 21 | 0 | 0 | 21 | 21 | 0 | 16 (31 Jul) | 7 | 2 | 29 Jul | 31 Jul | ||||
| 14. | Tufted Duck | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (29 Jul) | 4 | 1 | 29 Jul | 29 Jul | ||||
| 15. | Eider | 37 | 446 | 0 | 591 | 76 | 36 | 1186 | 694 | 492 | 225 (30 Jul) | 71 | 20 | 15 Apr | 10 Sep | ||||
| 16. | Velvet Scoter | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (31 Jul) | 4 | 1 | 31 Jul | 31 Jul | ||||
| 17. | Common Scoter | 12 | 70 | 0 | 1730 | 39 | 0 | 1851 | 295 | 1556 | 1441 (11 Jul) | 54 | 15 | 15 Apr | 27 Aug | ||||
| 18. | Red-breasted Merganser | 0 | 5 | 0 | 2 | 0 | 0 | 7 | 2 | 5 | 5 (18 May) | 7 | 2 | 18 May | 12 Jul | ||||
| 19. | Swift | 0 | 33 | 0 | 14 | 3 | 0 | 50 | 17 | 33 | 29 (11 May) | 32 | 9 | 6 May | 26 Aug | ||||
| 20. | Woodpigeon | 0 | 1 | 0 | 2 | 0 | 0 | 3 | 2 | 1 | 2 (7 Jul) | 7 | 2 | 6 May | 7 Jul | ||||
| 21. | Great Crested Grebe | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (29 Jul) | 4 | 1 | 29 Jul | 29 Jul | ||||
| 22. | Oystercatcher | 10 | 83 | 0 | 54 | 74 | 0 | 221 | 126 | 95 | 64 (27 Aug) | 61 | 17 | 14 Apr | 27 Aug | ||||
| 23. | Grey Plover | 80 | 113 | 0 | 4 | 0 | 0 | 197 | 4 | 193 | 80 (14 Apr) | 18 | 5 | 14 Apr | 31 Jul | ||||
| 24. | Golden Plover | 0 | 0 | 0 | 5 | 10 | 1 | 16 | 16 | 0 | 8 (25 Aug) | 18 | 5 | 30 Jul | 10 Sep | ||||
| 25. | Ringed Plover | 0 | 40 | 0 | 2 | 0 | 0 | 42 | 2 | 40 | 25 (13 May) | 14 | 4 | 9 May | 31 Jul | ||||
| 26. | Whimbrel | 22 | 31 | 0 | 13 | 5 | 0 | 71 | 18 | 53 | 16 (14 Apr) | 54 | 15 | 14 Apr | 27 Aug | ||||
| 27. | Curlew | 5784 | 18 | 0 | 44 | 3 | 0 | 5849 | 47 | 5802 | 3635 (14 Apr) | 57 | 16 | 14 Apr | 26 Aug | ||||
| 28. | Bar-tailed Godwit | 7 | 14 | 0 | 275 | 10 | 0 | 306 | 285 | 21 | 110 (30 Jul) | 29 | 8 | 16 Apr | 25 Aug | ||||
| 29. | Black-tailed Godwit | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (14 Apr) | 4 | 1 | 14 Apr | 14 Apr | ||||
| 30. | Snipe | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 4 | 0 | 4 (26 Aug) | 4 | 1 | 26 Aug | 26 Aug | ||||
| Species | Apr | May | Jun | Jul | Aug | Sep | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Common Sandpiper | 0 | 3 | 0 | 0 | 2 | 0 | 5 | 2 | 3 | 2 (25 Aug) | 14 | 4 | 12 May | 25 Aug | ||||
| 32. | Green Sandpiper | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 4 | 0 | 3 (25 Aug) | 7 | 2 | 25 Aug | 26 Aug | ||||
| 33. | Wood Sandpiper | 0 | 0 | 0 | 1 | 2 | 0 | 3 | 3 | 0 | 2 (25 Aug) | 7 | 2 | 29 Jul | 25 Aug | ||||
| 34. | Redshank | 2 | 52 | 0 | 6 | 0 | 0 | 60 | 6 | 54 | 29 (12 May) | 21 | 6 | 16 Apr | 31 Jul | ||||
| 35. | Spotted Redshank | 0 | 5 | 0 | 0 | 0 | 0 | 5 | 0 | 5 | 3 (11 May) | 7 | 2 | 11 May | 12 May | ||||
| 36. | Greenshank | 0 | 21 | 0 | 0 | 17 | 0 | 38 | 17 | 21 | 17 (26 Aug) | 21 | 6 | 11 May | 26 Aug | ||||
| 37. | Turnstone | 0 | 56 | 0 | 26 | 2 | 0 | 84 | 28 | 56 | 29 (11 May) | 32 | 9 | 9 May | 26 Aug | ||||
| 38. | Knot | 0 | 123 | 0 | 61 | 0 | 0 | 184 | 61 | 123 | 122 (12 May) | 18 | 5 | 11 May | 31 Jul | ||||
| 39. | Ruff | 0 | 0 | 0 | 1 | 0 | 13 | 14 | 14 | 0 | 13 (10 Sep) | 7 | 2 | 30 Jul | 10 Sep | ||||
| 40. | wader sp. | 0 | 162 | 0 | 0 | 50 | 0 | 212 | 50 | 162 | 162 (12 May) | 7 | 2 | 12 May | 27 Aug | ||||
| 41. | Sanderling | 0 | 97 | 0 | 18 | 43 | 0 | 158 | 61 | 97 | 35 (11 May) | 29 | 8 | 9 May | 27 Aug | ||||
| 42. | Dunlin | 0 | 286 | 0 | 71 | 0 | 0 | 357 | 71 | 286 | 194 (12 May) | 25 | 7 | 9 May | 31 Jul | ||||
| 43. | Little Stint | 0 | 12 | 0 | 0 | 0 | 0 | 12 | 0 | 12 | 7 (11 May) | 7 | 2 | 11 May | 12 May | ||||
| 44. | Little Tern | 0 | 32 | 0 | 115 | 17 | 7 | 171 | 139 | 32 | 72 (30 Jul) | 43 | 12 | 9 May | 10 Sep | ||||
| 45. | Gull-billed Tern | 0 | 10 | 0 | 0 | 0 | 0 | 10 | 0 | 10 | 8 (11 May) | 7 | 2 | 11 May | 17 May | ||||
| 46. | Caspian Tern | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 (9 May) | 4 | 1 | 9 May | 9 May | ||||
| 47. | Whiskered Tern | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 (9 Sep) | 4 | 1 | 9 Sep | 9 Sep | ||||
| 48. | Black Tern | 0 | 13 | 0 | 14 | 1 | 1 | 29 | 16 | 13 | 13 (11 May) | 25 | 7 | 11 May | 9 Sep | ||||
| 49. | White-winged Black Tern | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (7 Jul) | 4 | 1 | 7 Jul | 7 Jul | ||||
| 50. | Arctic Tern | 0 | 51 | 0 | 5 | 5 | 0 | 61 | 10 | 51 | 15 (12 May) | 29 | 8 | 11 May | 25 Aug | ||||
| 51. | Common/Arctic Tern | 0 | 658 | 0 | 327 | 750 | 441 | 2176 | 1502 | 674 | 412 (27 Aug) | 79 | 22 | 9 May | 10 Sep | ||||
| 52. | Common Tern | 2 | 34 | 0 | 18 | 55 | 0 | 109 | 73 | 36 | 43 (25 Aug) | 29 | 8 | 15 Apr | 27 Aug | ||||
| 53. | Sandwich Tern | 1 | 379 | 0 | 353 | 120 | 279 | 1132 | 742 | 390 | 243 (10 May) | 75 | 21 | 15 Apr | 10 Sep | ||||
| 54. | Little Gull | 0 | 62 | 0 | 0 | 0 | 0 | 62 | 0 | 62 | 62 (11 May) | 4 | 1 | 11 May | 11 May | ||||
| 55. | Black-headed Gull | 23 | 813 | 0 | 351 | 180 | 0 | 1367 | 531 | 836 | 313 (12 May) | 82 | 23 | 14 Apr | 27 Aug | ||||
| 56. | Mediterranean Gull | 0 | 3 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 2 (13 May) | 7 | 2 | 12 May | 13 May | ||||
| 57. | Common Gull | 127 | 231 | 0 | 12 | 8 | 0 | 378 | 20 | 358 | 127 (15 Apr) | 46 | 13 | 15 Apr | 26 Aug | ||||
| 58. | Caspian Gull | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (12 May) | 4 | 1 | 12 May | 12 May | ||||
| 59. | Herring Gull | 5 | 256 | 0 | 88 | 82 | 0 | 431 | 170 | 261 | 146 (12 May) | 39 | 11 | 15 Apr | 27 Aug | ||||
| 60. | Great Black-backed Gull | 0 | 46 | 0 | 10 | 20 | 0 | 76 | 30 | 46 | 18 (27 Aug) | 36 | 10 | 9 May | 27 Aug | ||||
| Species | Apr | May | Jun | Jul | Aug | Sep | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Lesser Black-backed Gull | 34 | 423 | 0 | 638 | 16 | 0 | 1111 | 654 | 457 | 355 (29 Jul) | 50 | 14 | 15 Apr | 27 Aug | ||||
| 62. | large gull sp. | 0 | 247 | 0 | 0 | 0 | 0 | 247 | 0 | 247 | 247 (10 May) | 4 | 1 | 10 May | 10 May | ||||
| 63. | skua sp. | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 (27 Aug) | 4 | 1 | 27 Aug | 27 Aug | ||||
| 64. | Arctic Skua | 0 | 1 | 0 | 5 | 0 | 0 | 6 | 5 | 1 | 3 (31 Jul) | 14 | 4 | 10 May | 31 Jul | ||||
| 65. | Fulmar | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (29 Jul) | 4 | 1 | 29 Jul | 29 Jul | ||||
| 66. | Gannet | 5 | 0 | 0 | 151 | 20 | 27 | 203 | 197 | 6 | 81 (31 Jul) | 32 | 9 | 15 Apr | 10 Sep | ||||
| 67. | Cormorant | 71 | 320 | 0 | 61 | 89 | 0 | 541 | 145 | 396 | 79 (26 Aug) | 68 | 19 | 14 Apr | 26 Aug | ||||
| 68. | Spoonbill | 0 | 20 | 0 | 1 | 0 | 5 | 26 | 5 | 21 | 8 (13 May) | 25 | 7 | 9 May | 10 Sep | ||||
| 69. | Great White Egret | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (13 May) | 4 | 1 | 13 May | 13 May | ||||
| 70. | Grey Heron | 0 | 7 | 0 | 3 | 9 | 0 | 19 | 12 | 7 | 9 (26 Aug) | 21 | 6 | 9 May | 26 Aug | ||||
| 71. | Osprey | 0 | 3 | 0 | 0 | 4 | 0 | 7 | 4 | 3 | 2 (9 May) | 14 | 4 | 9 May | 26 Aug | ||||
| 72. | Honey Buzzard | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 3 | 0 | 3 (26 Aug) | 4 | 1 | 26 Aug | 26 Aug | ||||
| 73. | Sparrowhawk | 0 | 2 | 0 | 0 | 2 | 0 | 4 | 2 | 2 | 1 (11 May) | 14 | 4 | 11 May | 25 Aug | ||||
| 74. | Marsh Harrier | 0 | 53 | 0 | 7 | 21 | 0 | 81 | 28 | 53 | 19 (12 May) | 61 | 17 | 9 May | 27 Aug | ||||
| 75. | Hen Harrier | 0 | 3 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 1 (11 May) | 11 | 3 | 11 May | 16 May | ||||
| 76. | Pallid Harrier | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 1 (6 May) | 7 | 2 | 6 May | 17 May | ||||
| 77. | White-tailed Eagle | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (12 May) | 4 | 1 | 12 May | 12 May | ||||
| 78. | Common Buzzard | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 (26 Aug) | 4 | 1 | 26 Aug | 26 Aug | ||||
| 79. | Short-eared Owl | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (14 May) | 4 | 1 | 14 May | 14 May | ||||
| 80. | Kingfisher | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 (31 Jul) | 4 | 1 | 31 Jul | 31 Jul | ||||
| 81. | Kestrel | 0 | 13 | 0 | 5 | 14 | 0 | 32 | 19 | 13 | 8 (26 Aug) | 39 | 11 | 6 May | 27 Aug | ||||
| 82. | Merlin | 0 | 10 | 0 | 0 | 0 | 0 | 10 | 1 | 9 | 5 (11 May) | 11 | 3 | 11 May | 17 May | ||||
| 83. | Peregrine | 0 | 5 | 0 | 0 | 1 | 0 | 6 | 1 | 5 | 3 (14 May) | 14 | 4 | 12 May | 26 Aug | ||||
| 84. | Carrion Crow | 0 | 5 | 0 | 0 | 0 | 0 | 5 | 0 | 5 | 5 (12 May) | 4 | 1 | 12 May | 12 May | ||||
| 85. | Skylark | 0 | 0 | 0 | 20 | 7 | 0 | 27 | 27 | 0 | 14 (30 Jul) | 18 | 5 | 29 Jul | 26 Aug | ||||
| 86. | Sand Martin | 0 | 24 | 0 | 0 | 5 | 0 | 29 | 5 | 24 | 15 (11 May) | 18 | 5 | 11 May | 26 Aug | ||||
| 87. | Swallow | 3 | 1117 | 0 | 25 | 184 | 2 | 1331 | 211 | 1120 | 602 (11 May) | 64 | 18 | 16 Apr | 10 Sep | ||||
| 88. | House Martin | 0 | 15 | 0 | 0 | 30 | 0 | 45 | 30 | 15 | 16 (26 Aug) | 18 | 5 | 6 May | 26 Aug | ||||
| 89. | Chiffchaff | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (15 May) | 4 | 1 | 15 May | 15 May | ||||
| 90. | Starling | 0 | 1 | 0 | 232 | 190 | 0 | 423 | 422 | 1 | 190 (26 Aug) | 14 | 4 | 11 May | 26 Aug | ||||
| Species | Apr | May | Jun | Jul | Aug | Sep | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 91. | Fieldfare | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 1 (6 May) | 7 | 2 | 6 May | 10 May | ||||
| 92. | Spotted Flycatcher | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (12 May) | 4 | 1 | 12 May | 12 May | ||||
| 93. | Whinchat | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (12 May) | 4 | 1 | 12 May | 12 May | ||||
| 94. | Wheatear | 0 | 2 | 0 | 0 | 1 | 0 | 3 | 1 | 2 | 2 (12 May) | 7 | 2 | 12 May | 26 Aug | ||||
| 95. | Dunnock | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (26 Aug) | 4 | 1 | 26 Aug | 26 Aug | ||||
| 96. | Blue-headed Wagtail | 0 | 53 | 0 | 0 | 3 | 0 | 56 | 3 | 53 | 17 (13 May) | 21 | 6 | 11 May | 26 Aug | ||||
| 97. | Grey-headed Wagtail | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 (17 May) | 4 | 1 | 17 May | 17 May | ||||
| 98. | White Wagtail | 2 | 8 | 0 | 0 | 4 | 0 | 14 | 4 | 10 | 4 (26 Aug) | 21 | 6 | 14 Apr | 26 Aug | ||||
| 99. | Meadow Pipit | 0 | 42 | 0 | 18 | 135 | 18 | 213 | 171 | 42 | 135 (26 Aug) | 32 | 9 | 6 May | 10 Sep | ||||
| 100. | Tree Pipit | 0 | 8 | 0 | 0 | 2 | 0 | 10 | 2 | 8 | 2 (12 May) | 25 | 7 | 9 May | 27 Aug | ||||
| 101. | Chaffinch | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (25 Aug) | 4 | 1 | 25 Aug | 25 Aug | ||||
| 102. | Linnet | 0 | 11 | 0 | 1 | 0 | 0 | 12 | 1 | 11 | 4 (11 May) | 18 | 5 | 11 May | 7 Jul | ||||
| 103. | Lesser Redpoll | 0 | 4 | 0 | 1 | 0 | 0 | 5 | 1 | 4 | 4 (12 May) | 7 | 2 | 12 May | 30 Jul | ||||
| 104. | Siskin | 0 | 6 | 0 | 0 | 0 | 0 | 6 | 0 | 6 | 3 (12 May) | 11 | 3 | 10 May | 15 May | ||||
| 105. | Reed Bunting | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 0 | 1 (31 Jul) | 7 | 2 | 31 Jul | 26 Aug | ||||
| Other species | |||||||||||||||||||
| Species | Apr | May | Jun | Jul | Aug | Sep | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Harbour Porpoise | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (27 Aug) | 4 | 1 | 27 Aug | 27 Aug | ||||
| Species | Apr | May | Jun | Jul | Aug | Sep | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 6260 | 37281 | 0 | 5507 | 2458 | 940 | 52446 | 7350 | 45096 | 100 | 28 | ||||||||
| Observation hours | 32:00 | 89:36 | 0:00 | 47:20 | 28:00 | 6:00 | 202:56 | ||||||||||||
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