Also present
Seghwaert, Zoetermeer (nacht)
Totals 2021 - individuals
| Species | Sep | Oct | Nov | Dec | Totals | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Dark-bellied Brent Goose | 0 | 1 | 2 | 1 | 4 | 1 ( 7 Oct) | 4 | 4 | 7 Oct | 26 Dec | ||||
| 2. | Canada Goose | 0 | 1 | 0 | 0 | 1 | 1 ( 9 Oct) | 1 | 1 | 9 Oct | 9 Oct | ||||
| 3. | Barnacle Goose | 0 | 0 | 25 | 89 | 114 | 34 (20 Dec) | 15 | 15 | 4 Nov | 31 Dec | ||||
| 4. | Greylag Goose | 13 | 38 | 40 | 96 | 187 | 23 (17 Dec) | 47 | 47 | 21 Sep | 31 Dec | ||||
| 5. | Eurasian White-fronted Goose | 10 | 16 | 127 | 1016 | 1169 | 258 (18 Dec) | 55 | 55 | 21 Sep | 31 Dec | ||||
| 6. | Egyptian Goose | 0 | 0 | 3 | 5 | 8 | 4 (20 Dec) | 5 | 5 | 6 Nov | 20 Dec | ||||
| 7. | Gadwall | 1 | 21 | 2 | 8 | 32 | 4 (22 Dec) | 21 | 21 | 21 Sep | 26 Dec | ||||
| 8. | Wigeon | 0 | 23 | 63 | 311 | 397 | 58 (22 Dec) | 55 | 55 | 4 Oct | 31 Dec | ||||
| 9. | Mallard | 1 | 2 | 4 | 1 | 8 | 2 (25 Nov) | 7 | 7 | 21 Sep | 2 Dec | ||||
| 10. | duck sp. | 0 | 0 | 1 | 1 | 2 | 1 (21 Nov) | 2 | 2 | 21 Nov | 17 Dec | ||||
| 11. | Moorhen | 0 | 3 | 2 | 1 | 6 | 1 ( 5 Oct) | 6 | 6 | 5 Oct | 21 Dec | ||||
| 12. | Coot | 2 | 10 | 10 | 15 | 37 | 4 (20 Dec) | 24 | 24 | 24 Sep | 31 Dec | ||||
| 13. | Ringed Plover | 1 | 0 | 0 | 0 | 1 | 1 (20 Sep) | 1 | 1 | 20 Sep | 20 Sep | ||||
| 14. | Lapwing | 0 | 0 | 1 | 0 | 1 | 1 (18 Nov) | 1 | 1 | 18 Nov | 18 Nov | ||||
| 15. | Curlew | 1 | 3 | 4 | 2 | 10 | 2 (23 Oct) | 8 | 8 | 23 Sep | 28 Dec | ||||
| 16. | Snipe | 0 | 1 | 7 | 5 | 13 | 3 (12 Nov) | 7 | 7 | 17 Oct | 22 Dec | ||||
| 17. | Common Sandpiper | 1 | 0 | 0 | 0 | 1 | 1 (20 Sep) | 1 | 1 | 20 Sep | 20 Sep | ||||
| 18. | Green Sandpiper | 1 | 0 | 0 | 0 | 1 | 1 (29 Sep) | 1 | 1 | 29 Sep | 29 Sep | ||||
| 19. | large gull sp. | 0 | 0 | 0 | 2 | 2 | 1 ( 2 Dec) | 2 | 2 | 2 Dec | 16 Dec | ||||
| 20. | Bittern | 0 | 2 | 1 | 0 | 3 | 1 ( 8 Oct) | 3 | 3 | 8 Oct | 3 Nov | ||||
| 21. | Night Heron | 0 | 1 | 1 | 0 | 2 | 1 ( 9 Oct) | 2 | 2 | 9 Oct | 29 Nov | ||||
| 22. | Grey Heron | 5 | 16 | 39 | 33 | 93 | 14 (22 Nov) | 38 | 38 | 21 Sep | 30 Dec | ||||
| 23. | Skylark | 0 | 1 | 2 | 0 | 3 | 1 ( 8 Oct) | 3 | 3 | 8 Oct | 18 Nov | ||||
| 24. | Song Thrush | 335 | 3418 | 145 | 9 | 3907 | 660 ( 9 Oct) | 64 | 64 | 20 Sep | 24 Dec | ||||
| 25. | Redwing | 1 | 2229 | 1981 | 310 | 4521 | 473 (24 Oct) | 83 | 83 | 29 Sep | 31 Dec | ||||
| 26. | Blackbird | 11 | 103 | 35 | 4 | 153 | 13 ( 9 Oct) | 38 | 38 | 21 Sep | 16 Dec | ||||
| 27. | Fieldfare | 0 | 0 | 1 | 2 | 3 | 2 ( 6 Dec) | 2 | 2 | 5 Nov | 6 Dec | ||||
| 28. | Ring Ouzel | 1 | 0 | 0 | 0 | 1 | 1 (29 Sep) | 1 | 1 | 29 Sep | 29 Sep | ||||
| 29. | Robin | 4 | 216 | 4 | 0 | 224 | 78 ( 8 Oct) | 16 | 16 | 24 Sep | 12 Nov | ||||
| 30. | Chaffinch | 0 | 4 | 4 | 0 | 8 | 3 (12 Nov) | 5 | 5 | 24 Oct | 12 Nov | ||||
| Species | Sep | Oct | Nov | Dec | Totals | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 31. | Brambling | 0 | 2 | 3 | 0 | 5 | 2 (22 Nov) | 4 | 4 | 24 Oct | 22 Nov | ||||
| 32. | Siskin | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 Oct | 3 Oct | |||||
| 33. | Ortolan Bunting | 3 | 1 | 0 | 0 | 4 | 3 (20 Sep) | 2 | 2 | 20 Sep | 7 Oct | ||||
| 34. | Species unidentified | 2 | 1 | 4 | 1 | 8 | 2 ( 5 Nov) | 7 | 7 | 24 Sep | 6 Dec | ||||
| Species | Sep | Oct | Nov | Dec | Totals | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 393 | 6113 | 2511 | 1912 | 10929 | 10929 | 28902 | 100 | 100 | ||||||
| Observation hours | 67:16 | 377:48 | 404:23 | 453:38 | 1303:05 | ||||||||||
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