Also present
Totals Maasmond (Maasvlakte) 2015
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Dark-bellied Brent Goose | 0 | 37 | 762 | 799 | 797 | 2 | 750 (21 Nov) | 43 | 3 | 3 Oct | 21 Nov | ||||
| 2. | Greylag Goose | 0 | 0 | 4 | 4 | 0 | 4 | 4 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 3. | Pink-footed Goose | 0 | 0 | 3 | 3 | 3 | 0 | 3 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 4. | Shelduck | 0 | 2 | 5 | 7 | 6 | 1 | 5 (21 Nov) | 29 | 2 | 3 Oct | 21 Nov | ||||
| 5. | Gadwall | 0 | 0 | 8 | 8 | 4 | 4 | 4 (13 Nov) | 29 | 2 | 13 Nov | 21 Nov | ||||
| 6. | Wigeon | 0 | 0 | 17 | 17 | 17 | 0 | 16 (21 Nov) | 29 | 2 | 13 Nov | 21 Nov | ||||
| 7. | Mallard | 0 | 0 | 4 | 4 | 4 | 0 | 4 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 8. | Teal | 6 | 0 | 9 | 15 | 15 | 0 | 8 (21 Nov) | 43 | 3 | 5 Sep | 25 Nov | ||||
| 9. | Eider | 0 | 1 | 10 | 11 | 11 | 0 | 5 (21 Nov) | 43 | 3 | 3 Oct | 25 Nov | ||||
| 10. | Velvet Scoter | 0 | 0 | 2 | 2 | 2 | 0 | 2 (13 Nov) | 14 | 1 | 13 Nov | 13 Nov | ||||
| 11. | Common Scoter | 25 | 11 | 190 | 226 | 226 | 0 | 171 (19 Nov) | 71 | 5 | 5 Sep | 21 Nov | ||||
| 12. | Goldeneye | 0 | 0 | 2 | 2 | 2 | 0 | 1 (21 Nov) | 29 | 2 | 21 Nov | 25 Nov | ||||
| 13. | Red-breasted Merganser | 0 | 4 | 27 | 31 | 31 | 0 | 15 (19 Nov) | 71 | 5 | 3 Oct | 25 Nov | ||||
| 14. | Great Crested Grebe | 0 | 1 | 32 | 33 | 33 | 0 | 19 (25 Nov) | 71 | 5 | 3 Oct | 25 Nov | ||||
| 15. | Oystercatcher | 0 | 5 | 0 | 5 | 2 | 3 | 5 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 16. | Lapwing | 0 | 0 | 25 | 25 | 25 | 0 | 25 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 17. | Grey Plover | 3 | 0 | 9 | 12 | 12 | 0 | 9 (13 Nov) | 29 | 2 | 5 Sep | 13 Nov | ||||
| 18. | Whimbrel | 1 | 0 | 0 | 1 | 1 | 0 | 1 ( 5 Sep) | 14 | 1 | 5 Sep | 5 Sep | ||||
| 19. | Curlew | 0 | 0 | 3 | 3 | 3 | 0 | 2 (21 Nov) | 29 | 2 | 13 Nov | 21 Nov | ||||
| 20. | Turnstone | 15 | 0 | 9 | 24 | 24 | 0 | 15 ( 5 Sep) | 43 | 3 | 5 Sep | 21 Nov | ||||
| 21. | Knot | 1 | 0 | 0 | 1 | 1 | 0 | 1 ( 5 Sep) | 14 | 1 | 5 Sep | 5 Sep | ||||
| 22. | Dunlin | 5 | 0 | 1291 | 1296 | 1296 | 0 | 1250 (21 Nov) | 43 | 3 | 5 Sep | 21 Nov | ||||
| 23. | Woodcock | 0 | 0 | 3 | 3 | 3 | 0 | 3 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 24. | Kittiwake | 0 | 0 | 2790 | 2790 | 2790 | 0 | 1850 (19 Nov) | 71 | 5 | 13 Nov | 25 Nov | ||||
| 25. | Sabine's Gull | 0 | 0 | 1 | 1 | 1 | 0 | 1 (19 Nov) | 14 | 1 | 19 Nov | 19 Nov | ||||
| 26. | Black-headed Gull | 0 | 0 | 9 | 9 | 9 | 0 | 5 (13 Nov) | 29 | 2 | 13 Nov | 25 Nov | ||||
| 27. | Little Gull | 1 | 0 | 130 | 131 | 131 | 0 | 50 (21 Nov) | 86 | 6 | 5 Sep | 25 Nov | ||||
| 28. | Mediterranean Gull | 0 | 0 | 1 | 1 | 1 | 0 | 1 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 29. | Common Gull | 0 | 0 | 118 | 118 | 118 | 0 | 93 (25 Nov) | 29 | 2 | 13 Nov | 25 Nov | ||||
| 30. | Great Black-backed Gull | 0 | 0 | 69 | 69 | 69 | 0 | 69 (25 Nov) | 14 | 1 | 25 Nov | 25 Nov | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Caspian Gull | 0 | 0 | 1 | 1 | 1 | 0 | 1 (14 Nov) | 14 | 1 | 14 Nov | 14 Nov | ||||
| 32. | Lesser Black-backed Gull | 0 | 0 | 5 | 5 | 5 | 0 | 5 (13 Nov) | 14 | 1 | 13 Nov | 13 Nov | ||||
| 33. | Sandwich Tern | 5 | 2 | 0 | 7 | 7 | 0 | 5 ( 5 Sep) | 29 | 2 | 5 Sep | 3 Oct | ||||
| 34. | Common Tern | 3 | 2 | 0 | 5 | 5 | 0 | 3 ( 5 Sep) | 29 | 2 | 5 Sep | 3 Oct | ||||
| 35. | Common/Arctic Tern | 10 | 0 | 0 | 10 | 10 | 0 | 10 ( 5 Sep) | 14 | 1 | 5 Sep | 5 Sep | ||||
| 36. | Great Skua | 0 | 0 | 6 | 6 | 6 | 0 | 5 (19 Nov) | 29 | 2 | 13 Nov | 19 Nov | ||||
| 37. | Pomarine Skua | 0 | 0 | 9 | 9 | 9 | 0 | 4 (19 Nov) | 57 | 4 | 13 Nov | 25 Nov | ||||
| 38. | Arctic Skua | 1 | 0 | 1 | 2 | 2 | 0 | 1 ( 5 Sep) | 29 | 2 | 5 Sep | 19 Nov | ||||
| 39. | skua sp. | 3 | 0 | 0 | 3 | 3 | 0 | 3 ( 5 Sep) | 14 | 1 | 5 Sep | 5 Sep | ||||
| 40. | Little Auk | 0 | 0 | 2 | 2 | 2 | 0 | 2 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 41. | Guillemot | 0 | 0 | 28 | 28 | 27 | 1 | 12 (21 Nov) | 71 | 5 | 13 Nov | 25 Nov | ||||
| 42. | Razorbill/Guillemot | 0 | 0 | 109 | 109 | 109 | 0 | 35 (14 Nov) | 71 | 5 | 13 Nov | 25 Nov | ||||
| 43. | Red-throated Diver | 2 | 0 | 10 | 12 | 12 | 0 | 3 (13 Nov) | 71 | 5 | 5 Sep | 25 Nov | ||||
| 44. | Black-throated Diver | 0 | 0 | 13 | 13 | 13 | 0 | 10 (19 Nov) | 43 | 3 | 14 Nov | 25 Nov | ||||
| 45. | Great Northern Diver | 0 | 0 | 1 | 1 | 1 | 0 | 1 (19 Nov) | 14 | 1 | 19 Nov | 19 Nov | ||||
| 46. | diver sp. | 0 | 0 | 74 | 74 | 74 | 0 | 74 (25 Nov) | 14 | 1 | 25 Nov | 25 Nov | ||||
| 47. | Leach's Petrel | 0 | 0 | 3 | 3 | 3 | 0 | 2 (14 Nov) | 29 | 2 | 14 Nov | 19 Nov | ||||
| 48. | Fulmar | 5 | 0 | 0 | 5 | 5 | 0 | 5 ( 5 Sep) | 14 | 1 | 5 Sep | 5 Sep | ||||
| 49. | Sooty Shearwater | 0 | 0 | 4 | 4 | 4 | 0 | 3 (13 Nov) | 29 | 2 | 13 Nov | 19 Nov | ||||
| 50. | Gannet | 5 | 17 | 323 | 345 | 331 | 14 | 144 (19 Nov) | 100 | 7 | 5 Sep | 25 Nov | ||||
| 51. | Cormorant | 0 | 87 | 96 | 183 | 168 | 15 | 87 ( 3 Oct) | 43 | 3 | 3 Oct | 25 Nov | ||||
| 52. | Carrion Crow | 0 | 2 | 0 | 2 | 1 | 1 | 2 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 53. | Skylark | 0 | 0 | 5 | 5 | 5 | 0 | 5 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 54. | Swallow | 0 | 3 | 0 | 3 | 3 | 0 | 3 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 55. | Starling | 0 | 0 | 500 | 500 | 500 | 0 | 500 (21 Nov) | 14 | 1 | 21 Nov | 21 Nov | ||||
| 56. | Dunnock | 0 | 5 | 0 | 5 | 4 | 1 | 5 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 57. | Grey Wagtail | 0 | 1 | 0 | 1 | 1 | 0 | 1 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 58. | White Wagtail | 0 | 9 | 0 | 9 | 7 | 2 | 9 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 59. | Meadow Pipit | 0 | 4 | 0 | 4 | 4 | 0 | 4 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 60. | Linnet | 0 | 17 | 0 | 17 | 17 | 0 | 17 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 61. | Siskin | 0 | 6 | 0 | 6 | 0 | 6 | 6 ( 3 Oct) | 14 | 1 | 3 Oct | 3 Oct | ||||
| 62. | Lapland Bunting | 0 | 0 | 1 | 1 | 1 | 0 | 1 (14 Nov) | 14 | 1 | 14 Nov | 14 Nov | ||||
| 63. | Snow Bunting | 0 | 0 | 2 | 2 | 2 | 0 | 1 (14 Nov) | 29 | 2 | 14 Nov | 25 Nov | ||||
| Other species | ||||||||||||||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Harbour Porpoise | 0 | 0 | 2 | 2 | 2 | 0 | 2 (19 Nov) | 14 | 1 | 19 Nov | 19 Nov | ||||
| Species | Sep | Oct | Nov | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 91 | 216 | 6728 | 7035 | 6981 | 54 | 100 | 7 | ||||||||
| Observation hours | 2:30 | 4:15 | 14:15 | 21:00 | ||||||||||||
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