Also present
Totals Aetsveldsche polder, Nigtevecht 2025
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Canada Goose | 9 | 0 | 9 | 1 | 8 | 8 ( 2 Jan) | 33 | 2 | 2 Jan | 31 Jan | ||||
| 2. | Barnacle Goose | 2107 | 481 | 2588 | 2334 | 254 | 822 (26 Jan) | 83 | 5 | 2 Jan | 15 Feb | ||||
| 3. | Greylag Goose | 238 | 128 | 366 | 221 | 145 | 143 (26 Jan) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 4. | goose sp. | 0 | 286 | 286 | 231 | 55 | 151 (14 Feb) | 33 | 2 | 14 Feb | 15 Feb | ||||
| 5. | Pink-footed Goose | 4 | 0 | 4 | 4 | 0 | 4 ( 2 Jan) | 17 | 1 | 2 Jan | 2 Jan | ||||
| 6. | Tundra Bean Goose | 70 | 21 | 91 | 91 | 0 | 67 ( 2 Jan) | 67 | 4 | 2 Jan | 15 Feb | ||||
| 7. | Eurasian White-fronted Goose | 7208 | 6983 | 14191 | 12914 | 1277 | 5015 (26 Jan) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 8. | Mute Swan | 15 | 18 | 33 | 28 | 5 | 13 (14 Feb) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 9. | Egyptian Goose | 12 | 19 | 31 | 13 | 18 | 14 (14 Feb) | 67 | 4 | 2 Jan | 15 Feb | ||||
| 10. | Shelduck | 0 | 3 | 3 | 0 | 3 | 2 ( 6 Feb) | 33 | 2 | 6 Feb | 14 Feb | ||||
| 11. | Gadwall | 4 | 24 | 28 | 6 | 22 | 22 (14 Feb) | 50 | 3 | 26 Jan | 15 Feb | ||||
| 12. | Wigeon | 370 | 165 | 535 | 90 | 445 | 370 (26 Jan) | 50 | 3 | 26 Jan | 15 Feb | ||||
| 13. | Mallard | 3 | 1 | 4 | 3 | 1 | 2 ( 2 Jan) | 50 | 3 | 2 Jan | 14 Feb | ||||
| 14. | Goosander | 1 | 0 | 1 | 1 | 0 | 1 ( 2 Jan) | 17 | 1 | 2 Jan | 2 Jan | ||||
| 15. | Feral Pigeon | 19 | 0 | 19 | 19 | 0 | 19 (26 Jan) | 17 | 1 | 26 Jan | 26 Jan | ||||
| 16. | Stock Dove | 10 | 1 | 11 | 2 | 9 | 7 ( 2 Jan) | 50 | 3 | 2 Jan | 15 Feb | ||||
| 17. | Woodpigeon | 180 | 51 | 231 | 121 | 110 | 74 (31 Jan) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 18. | Oystercatcher | 1 | 2 | 3 | 2 | 1 | 2 (15 Feb) | 33 | 2 | 26 Jan | 15 Feb | ||||
| 19. | Golden Plover | 39 | 13 | 52 | 33 | 19 | 35 (26 Jan) | 50 | 3 | 26 Jan | 14 Feb | ||||
| 20. | Lapwing | 275 | 190 | 465 | 366 | 99 | 121 (31 Jan) | 83 | 5 | 2 Jan | 15 Feb | ||||
| 21. | Black-headed Gull | 16 | 12 | 28 | 16 | 12 | 8 ( 2 Jan) | 83 | 5 | 2 Jan | 15 Feb | ||||
| 22. | Common Gull | 64 | 42 | 106 | 78 | 28 | 38 ( 2 Jan) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 23. | Caspian Gull | 6 | 2 | 8 | 7 | 1 | 2 ( 2 Jan) | 67 | 4 | 2 Jan | 14 Feb | ||||
| 24. | Herring Gull | 6 | 0 | 6 | 5 | 1 | 4 (26 Jan) | 33 | 2 | 26 Jan | 31 Jan | ||||
| 25. | Great Black-backed Gull | 3 | 2 | 5 | 2 | 3 | 2 (31 Jan) | 67 | 4 | 26 Jan | 15 Feb | ||||
| 26. | Cormorant | 16 | 19 | 35 | 8 | 27 | 12 (14 Feb) | 83 | 5 | 2 Jan | 15 Feb | ||||
| 27. | Great White Egret | 0 | 2 | 2 | 0 | 2 | 1 ( 6 Feb) | 33 | 2 | 6 Feb | 15 Feb | ||||
| 28. | Sparrowhawk | 1 | 1 | 2 | 1 | 1 | 1 (26 Jan) | 33 | 2 | 26 Jan | 15 Feb | ||||
| 29. | Hen Harrier | 0 | 1 | 1 | 1 | 0 | 1 (14 Feb) | 17 | 1 | 14 Feb | 14 Feb | ||||
| 30. | White-tailed Eagle | 1 | 0 | 1 | 1 | 0 | 1 ( 2 Jan) | 17 | 1 | 2 Jan | 2 Jan | ||||
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Common Buzzard | 1 | 0 | 1 | 0 | 1 | 1 ( 2 Jan) | 17 | 1 | 2 Jan | 2 Jan | ||||
| 32. | Rose-ringed Parakeet | 32 | 10 | 42 | 42 | 0 | 16 (26 Jan) | 67 | 4 | 26 Jan | 15 Feb | ||||
| 33. | Jackdaw | 26 | 27 | 53 | 50 | 3 | 14 (31 Jan) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 34. | Rook | 1 | 0 | 1 | 1 | 0 | 1 ( 2 Jan) | 17 | 1 | 2 Jan | 2 Jan | ||||
| 35. | Great Tit | 0 | 2 | 2 | 2 | 0 | 2 (15 Feb) | 17 | 1 | 15 Feb | 15 Feb | ||||
| 36. | Skylark | 0 | 10 | 10 | 0 | 10 | 6 (14 Feb) | 33 | 2 | 14 Feb | 15 Feb | ||||
| 37. | Starling | 1527 | 1693 | 3220 | 3093 | 127 | 1256 (14 Feb) | 100 | 6 | 2 Jan | 15 Feb | ||||
| 38. | Song Thrush | 1 | 0 | 1 | 1 | 0 | 1 (31 Jan) | 17 | 1 | 31 Jan | 31 Jan | ||||
| 39. | Fieldfare | 11 | 0 | 11 | 0 | 11 | 11 (26 Jan) | 17 | 1 | 26 Jan | 26 Jan | ||||
| 40. | thrush sp. | 0 | 1 | 1 | 1 | 0 | 1 ( 6 Feb) | 17 | 1 | 6 Feb | 6 Feb | ||||
| 41. | White Wagtail | 2 | 0 | 2 | 0 | 2 | 2 (26 Jan) | 17 | 1 | 26 Jan | 26 Jan | ||||
| 42. | Meadow Pipit | 1 | 5 | 6 | 1 | 5 | 5 (14 Feb) | 33 | 2 | 26 Jan | 14 Feb | ||||
| 43. | Chaffinch | 2 | 3 | 5 | 3 | 2 | 1 (26 Jan) | 83 | 5 | 26 Jan | 15 Feb | ||||
| 44. | Goldfinch | 2 | 3 | 5 | 3 | 2 | 2 (14 Feb) | 67 | 4 | 2 Jan | 15 Feb | ||||
| Species | Jan | Feb | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 12284 | 10221 | 22505 | 19796 | 2709 | 100 | 6 | ||||||||
| Observation hours | 7:30 | 6:15 | 13:45 | ||||||||||||
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