Also present
Totals Sonnisheide Houthalen 2025
| Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| 1. | Barnacle Goose | 2 | 0 | 2 | 2 | 0 | 2 (21 Apr) | 25 | 1 | 21 Apr | 21 Apr | ||||
| 2. | Greylag Goose | 11 | 0 | 11 | 0 | 11 | 11 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 3. | Swift | 1 | 230 | 231 | 2 | 229 | 230 ( 4 May) | 50 | 2 | 21 Apr | 4 May | ||||
| 4. | Woodpigeon | 6 | 0 | 6 | 0 | 6 | 6 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 5. | Dotterel | 0 | 1 | 1 | 0 | 1 | 1 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 6. | small wader | 0 | 7 | 7 | 0 | 7 | 7 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 7. | Black Tern | 0 | 1 | 1 | 0 | 1 | 1 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 8. | Black-headed Gull | 17 | 0 | 17 | 0 | 17 | 13 (27 Apr) | 50 | 2 | 21 Apr | 27 Apr | ||||
| 9. | White Stork | 0 | 8 | 8 | 0 | 8 | 8 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 10. | Cormorant | 11 | 0 | 11 | 0 | 11 | 6 (27 Apr) | 50 | 2 | 21 Apr | 27 Apr | ||||
| 11. | Honey Buzzard | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 12. | Sparrowhawk | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 13. | Marsh Harrier | 0 | 3 | 3 | 0 | 3 | 3 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 14. | Hen Harrier | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 15. | Pallid Harrier | 0 | 1 | 1 | 0 | 1 | 1 (10 May) | 25 | 1 | 10 May | 10 May | ||||
| 16. | Red Kite | 1 | 2 | 3 | 0 | 3 | 2 ( 4 May) | 50 | 2 | 27 Apr | 4 May | ||||
| 17. | Black Kite | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 18. | Common Buzzard | 3 | 0 | 3 | 0 | 3 | 3 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 19. | Merlin | 1 | 0 | 1 | 0 | 1 | 1 (27 Apr) | 25 | 1 | 27 Apr | 27 Apr | ||||
| 20. | Hobby | 4 | 1 | 5 | 0 | 5 | 4 (27 Apr) | 50 | 2 | 27 Apr | 4 May | ||||
| 21. | Peregrine | 0 | 1 | 1 | 0 | 1 | 1 (10 May) | 25 | 1 | 10 May | 10 May | ||||
| 22. | Wood Lark | 0 | 1 | 1 | 0 | 1 | 1 (10 May) | 25 | 1 | 10 May | 10 May | ||||
| 23. | Sand Martin | 4 | 0 | 4 | 0 | 4 | 3 (21 Apr) | 50 | 2 | 21 Apr | 27 Apr | ||||
| 24. | Swallow | 53 | 13 | 66 | 0 | 66 | 49 (27 Apr) | 75 | 3 | 21 Apr | 4 May | ||||
| 25. | House Martin | 0 | 3 | 3 | 0 | 3 | 3 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 26. | Blue-headed Wagtail | 8 | 0 | 8 | 0 | 8 | 5 (27 Apr) | 50 | 2 | 21 Apr | 27 Apr | ||||
| 27. | Grey-headed Wagtail | 0 | 1 | 1 | 0 | 1 | 1 (10 May) | 25 | 1 | 10 May | 10 May | ||||
| 28. | Yellow wagtail sp. | 0 | 4 | 4 | 0 | 4 | 4 ( 4 May) | 25 | 1 | 4 May | 4 May | ||||
| 29. | Meadow Pipit | 8 | 4 | 12 | 0 | 12 | 8 (27 Apr) | 50 | 2 | 27 Apr | 4 May | ||||
| 30. | Chaffinch | 3 | 0 | 3 | 0 | 3 | 3 (21 Apr) | 25 | 1 | 21 Apr | 21 Apr | ||||
| Species | Apr | May | Totals | S | N | Maximum | Presence (%) | Presence (days) | First | Last | |||||
| Totals | 137 | 281 | 418 | 4 | 414 | 100 | 4 | ||||||||
| Observation hours | 7:56 | 7:34 | 15:30 | ||||||||||||
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