Also present
Totals Westerslag, Texel 2015
| Species | May | Jun | Jul | Aug | Sep | Oct | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Dark-bellied Brent Goose | 0 | 0 | 0 | 0 | 61 | 39 | 100 | 95 | 5 | 61 (26 Sep) | 23 | 3 | 26 Sep | 31 Oct | ||||
| 2. | Greylag Goose | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 2 ( 2 May) | 8 | 1 | 2 May | 2 May | ||||
| 3. | Eurasian White-fronted Goose | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| 4. | Egyptian Goose | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 2 ( 2 May) | 8 | 1 | 2 May | 2 May | ||||
| 5. | Shelduck | 2 | 0 | 37 | 0 | 0 | 0 | 39 | 0 | 39 | 37 ( 5 Jul) | 15 | 2 | 2 May | 5 Jul | ||||
| 6. | Gadwall | 0 | 0 | 0 | 5 | 0 | 0 | 5 | 5 | 0 | 5 (23 Aug) | 8 | 1 | 23 Aug | 23 Aug | ||||
| 7. | Wigeon | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 3 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| 8. | Teal | 0 | 0 | 0 | 17 | 0 | 7 | 24 | 24 | 0 | 17 (23 Aug) | 15 | 2 | 23 Aug | 31 Oct | ||||
| 9. | Tufted Duck | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 ( 4 May) | 8 | 1 | 4 May | 4 May | ||||
| 10. | Eider | 67 | 0 | 1 | 0 | 7 | 25 | 100 | 97 | 3 | 62 ( 1 May) | 46 | 6 | 1 May | 31 Oct | ||||
| 11. | Velvet Scoter | 2 | 0 | 0 | 0 | 0 | 4 | 6 | 0 | 6 | 4 (31 Oct) | 15 | 2 | 4 May | 31 Oct | ||||
| 12. | Common Scoter | 2420 | 0 | 1257 | 45 | 451 | 497 | 4670 | 2157 | 2513 | 1116 ( 5 Jul) | 100 | 13 | 1 May | 31 Oct | ||||
| 13. | Red-breasted Merganser | 7 | 0 | 0 | 0 | 0 | 4 | 11 | 4 | 7 | 7 ( 2 May) | 23 | 3 | 2 May | 31 Oct | ||||
| 14. | Swift | 0 | 0 | 79 | 131 | 0 | 0 | 210 | 137 | 73 | 131 (23 Aug) | 15 | 2 | 5 Jul | 23 Aug | ||||
| 15. | Red-necked Grebe | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 ( 3 Oct) | 8 | 1 | 3 Oct | 3 Oct | ||||
| 16. | Great Crested Grebe | 0 | 0 | 2 | 1 | 0 | 4 | 7 | 6 | 1 | 4 (31 Oct) | 31 | 4 | 5 Jul | 31 Oct | ||||
| 17. | Oystercatcher | 10 | 0 | 17 | 2 | 0 | 4 | 33 | 20 | 13 | 8 ( 5 Jul) | 54 | 7 | 4 May | 31 Oct | ||||
| 18. | Whimbrel | 14 | 0 | 2 | 1 | 0 | 0 | 17 | 3 | 14 | 14 (17 May) | 31 | 4 | 17 May | 23 Aug | ||||
| 19. | Curlew | 1 | 0 | 0 | 5 | 0 | 0 | 6 | 5 | 1 | 5 (23 Aug) | 15 | 2 | 1 May | 23 Aug | ||||
| 20. | Bar-tailed Godwit | 16 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 16 | 12 ( 1 May) | 23 | 3 | 1 May | 17 May | ||||
| 21. | Common Sandpiper | 0 | 0 | 0 | 12 | 0 | 0 | 12 | 12 | 0 | 12 (23 Aug) | 8 | 1 | 23 Aug | 23 Aug | ||||
| 22. | Green Sandpiper | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (23 Aug) | 8 | 1 | 23 Aug | 23 Aug | ||||
| 23. | Turnstone | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 (19 Jul) | 8 | 1 | 19 Jul | 19 Jul | ||||
| 24. | Knot | 0 | 0 | 0 | 8 | 78 | 0 | 86 | 79 | 7 | 78 (26 Sep) | 15 | 2 | 23 Aug | 26 Sep | ||||
| 25. | Sanderling | 229 | 0 | 79 | 168 | 0 | 50 | 526 | 194 | 332 | 168 (23 Aug) | 69 | 9 | 1 May | 31 Oct | ||||
| 26. | Little Tern | 54 | 0 | 2 | 0 | 0 | 0 | 56 | 12 | 44 | 24 ( 1 May) | 54 | 7 | 1 May | 19 Jul | ||||
| 27. | Black Tern | 3 | 0 | 7 | 6 | 0 | 0 | 16 | 9 | 7 | 7 ( 5 Jul) | 23 | 3 | 17 May | 23 Aug | ||||
| 28. | Arctic Tern | 10 | 0 | 1 | 0 | 0 | 0 | 11 | 1 | 10 | 8 ( 2 May) | 31 | 4 | 1 May | 19 Jul | ||||
| 29. | Common/Arctic Tern | 92 | 0 | 2 | 0 | 0 | 0 | 94 | 2 | 92 | 48 (17 May) | 38 | 5 | 1 May | 19 Jul | ||||
| 30. | Common Tern | 457 | 0 | 269 | 55 | 29 | 0 | 810 | 385 | 425 | 223 ( 2 May) | 85 | 11 | 1 May | 26 Sep | ||||
| Species | May | Jun | Jul | Aug | Sep | Oct | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Sandwich Tern | 747 | 0 | 442 | 170 | 66 | 4 | 1429 | 1098 | 331 | 573 (16 May) | 69 | 9 | 1 May | 3 Oct | ||||
| 32. | Little Gull | 5 | 0 | 0 | 0 | 0 | 1 | 6 | 1 | 5 | 3 ( 4 May) | 31 | 4 | 2 May | 3 Oct | ||||
| 33. | Kittiwake | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 1 ( 1 May) | 15 | 2 | 1 May | 4 May | ||||
| 34. | Black-headed Gull | 5 | 0 | 91 | 310 | 18 | 423 | 847 | 804 | 43 | 310 (23 Aug) | 77 | 10 | 2 May | 31 Oct | ||||
| 35. | Common Gull | 15 | 0 | 9 | 6 | 0 | 306 | 336 | 289 | 47 | 306 ( 3 Oct) | 38 | 5 | 4 May | 3 Oct | ||||
| 36. | Herring Gull | 0 | 0 | 0 | 0 | 0 | 325 | 325 | 325 | 0 | 325 ( 3 Oct) | 8 | 1 | 3 Oct | 3 Oct | ||||
| 37. | Great Black-backed Gull | 15 | 0 | 4 | 4 | 1 | 25 | 49 | 37 | 12 | 13 (31 Oct) | 62 | 8 | 4 May | 31 Oct | ||||
| 38. | Lesser Black-backed Gull | 162 | 0 | 0 | 180 | 0 | 104 | 446 | 304 | 142 | 180 (23 Aug) | 38 | 5 | 2 May | 31 Oct | ||||
| 39. | Arctic Skua | 3 | 0 | 0 | 1 | 6 | 0 | 10 | 5 | 5 | 3 (17 May) | 31 | 4 | 17 May | 26 Sep | ||||
| 40. | Great Skua | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 1 | 1 | 1 (25 Sep) | 15 | 2 | 25 Sep | 26 Sep | ||||
| 41. | Razorbill | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 (17 May) | 8 | 1 | 17 May | 17 May | ||||
| 42. | Razorbill/Guillemot | 2 | 0 | 1 | 0 | 11 | 46 | 60 | 43 | 17 | 45 (31 Oct) | 38 | 5 | 17 May | 31 Oct | ||||
| 43. | Guillemot | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 3 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| 44. | Red-throated Diver | 15 | 0 | 0 | 0 | 34 | 64 | 113 | 78 | 35 | 48 (31 Oct) | 38 | 5 | 1 May | 31 Oct | ||||
| 45. | Black-throated Diver | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 ( 2 May) | 8 | 1 | 2 May | 2 May | ||||
| 46. | diver sp. | 5 | 0 | 0 | 0 | 0 | 1 | 6 | 1 | 5 | 3 ( 1 May) | 23 | 3 | 1 May | 3 Oct | ||||
| 47. | Sooty Shearwater | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 (25 Sep) | 8 | 1 | 25 Sep | 25 Sep | ||||
| 48. | Gannet | 179 | 0 | 107 | 2 | 29 | 33 | 350 | 93 | 257 | 92 (17 May) | 100 | 13 | 1 May | 31 Oct | ||||
| 49. | Cormorant | 468 | 0 | 187 | 12 | 19 | 57 | 743 | 342 | 401 | 173 ( 2 May) | 85 | 11 | 1 May | 31 Oct | ||||
| 50. | Grey Heron | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 ( 3 Oct) | 8 | 1 | 3 Oct | 3 Oct | ||||
| 51. | Carrion Crow | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 ( 2 May) | 8 | 1 | 2 May | 2 May | ||||
| 52. | Skylark | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 3 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| 53. | Swallow | 8 | 0 | 0 | 16 | 0 | 0 | 24 | 18 | 6 | 16 (23 Aug) | 23 | 3 | 16 May | 23 Aug | ||||
| 54. | Starling | 0 | 0 | 0 | 0 | 0 | 482 | 482 | 482 | 0 | 482 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| 55. | Blue-headed Wagtail | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 (23 Aug) | 8 | 1 | 23 Aug | 23 Aug | ||||
| 56. | White Wagtail | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 5 | 0 | 5 ( 3 Oct) | 8 | 1 | 3 Oct | 3 Oct | ||||
| 57. | Meadow Pipit | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 5 | 0 | 5 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| 58. | Greenfinch | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 (31 Oct) | 8 | 1 | 31 Oct | 31 Oct | ||||
| Other species | |||||||||||||||||||
| Species | May | Jun | Jul | Aug | Sep | Oct | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Harbour Porpoise | 0 | 0 | 6 | 0 | 0 | 8 | 14 | 11 | 3 | 8 (31 Oct) | 15 | 2 | 5 Jul | 31 Oct | ||||
| Species | May | Jun | Jul | Aug | Sep | Oct | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 5023 | 0 | 2603 | 1159 | 813 | 2536 | 12134 | 7212 | 4922 | 100 | 13 | ||||||||
| Observation hours | 11:30 | 0:00 | 4:45 | 2:00 | 2:15 | 4:00 | 24:30 | ||||||||||||
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