Totals Zwijnaarde Eiland 2021
| Year | |
| Period | |
| count-field | |
| Also present | |
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Barnacle Goose | 0 | 12 | 0 | 12 | 0 | 12 | 10 (4 Apr) | 40 | 2 | 4 Apr | 18 Apr | ||||
| 2. | goose sp. | 0 | 12 | 0 | 12 | 0 | 12 | 12 (4 Apr) | 20 | 1 | 4 Apr | 4 Apr | ||||
| 3. | Egyptian Goose | 2 | 0 | 2 | 4 | 0 | 4 | 2 (28 Mar) | 40 | 2 | 28 Mar | 2 May | ||||
| 4. | duck sp. | 0 | 2 | 0 | 2 | 0 | 2 | 2 (4 Apr) | 20 | 1 | 4 Apr | 4 Apr | ||||
| 5. | Swift | 0 | 15 | 2 | 17 | 0 | 17 | 15 (25 Apr) | 40 | 2 | 25 Apr | 2 May | ||||
| 6. | Stock Dove | 0 | 20 | 2 | 22 | 0 | 22 | 9 (4 Apr) | 80 | 4 | 4 Apr | 2 May | ||||
| 7. | Woodpigeon | 72 | 384 | 163 | 619 | 20 | 599 | 173 (18 Apr) | 100 | 5 | 28 Mar | 2 May | ||||
| 8. | Lapwing | 0 | 1 | 0 | 1 | 0 | 1 | 1 (18 Apr) | 20 | 1 | 18 Apr | 18 Apr | ||||
| 9. | wader sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (25 Apr) | 20 | 1 | 25 Apr | 25 Apr | ||||
| 10. | Cormorant | 7 | 80 | 13 | 100 | 0 | 100 | 33 (4 Apr) | 100 | 5 | 28 Mar | 2 May | ||||
| 11. | Great White Egret | 2 | 0 | 0 | 2 | 0 | 2 | 2 (28 Mar) | 20 | 1 | 28 Mar | 28 Mar | ||||
| 12. | Grey Heron | 3 | 4 | 0 | 7 | 0 | 7 | 3 (28 Mar) | 80 | 4 | 28 Mar | 25 Apr | ||||
| 13. | harrier sp. | 0 | 1 | 0 | 1 | 0 | 1 | 1 (25 Apr) | 20 | 1 | 25 Apr | 25 Apr | ||||
| 14. | Common Buzzard | 3 | 0 | 1 | 4 | 0 | 4 | 3 (28 Mar) | 40 | 2 | 28 Mar | 2 May | ||||
| 15. | Kestrel | 0 | 1 | 0 | 1 | 0 | 1 | 1 (18 Apr) | 20 | 1 | 18 Apr | 18 Apr | ||||
| 16. | Jackdaw | 0 | 5 | 0 | 5 | 0 | 5 | 5 (18 Apr) | 20 | 1 | 18 Apr | 18 Apr | ||||
| 17. | Sand Martin | 0 | 4 | 0 | 4 | 0 | 4 | 4 (18 Apr) | 20 | 1 | 18 Apr | 18 Apr | ||||
| 18. | Swallow | 0 | 74 | 0 | 74 | 0 | 74 | 51 (25 Apr) | 60 | 3 | 4 Apr | 25 Apr | ||||
| 19. | Starling | 6 | 0 | 0 | 6 | 0 | 6 | 6 (28 Mar) | 20 | 1 | 28 Mar | 28 Mar | ||||
| 20. | White Wagtail | 0 | 1 | 0 | 1 | 0 | 1 | 1 (25 Apr) | 20 | 1 | 25 Apr | 25 Apr | ||||
| 21. | Motacilla (wagtail) sp. | 0 | 2 | 0 | 2 | 0 | 2 | 2 (25 Apr) | 20 | 1 | 25 Apr | 25 Apr | ||||
| 22. | Meadow Pipit | 0 | 64 | 2 | 66 | 0 | 66 | 59 (25 Apr) | 60 | 3 | 18 Apr | 2 May | ||||
| 23. | finch sp. | 0 | 6 | 0 | 6 | 0 | 6 | 6 (4 Apr) | 20 | 1 | 4 Apr | 4 Apr | ||||
| 24. | Chaffinch/Brambling | 6 | 2 | 0 | 8 | 0 | 8 | 6 (28 Mar) | 40 | 2 | 28 Mar | 4 Apr | ||||
| 25. | passerine sp. | 0 | 177 | 0 | 177 | 0 | 177 | 92 (25 Apr) | 40 | 2 | 18 Apr | 25 Apr | ||||
| Species | Mar | Apr | May | Totals | SW | NE | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 101 | 868 | 185 | 1154 | 20 | 1134 | 100 | 5 | ||||||||
| Observation hours | 4:03 | 12:20 | 3:40 | 20:03 | ||||||||||||
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