Select until 11 January
Totals Heverlee (nacht) 2017 - 2026
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Present | Year Maximum | |
| 1. | Canada Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 23 | 7.7 | 0 | 23 (2025) | | | | |
| 2. | Bar-headed Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 3. | Greylag Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 4. | Eurasian White-fronted Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 4 | 0 | 14 | 4.7 | 0 | 10 (2024) | | | | |
| 5. | Egyptian Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 6. | Gadwall | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 5 | 1.7 | 0 | 5 (2025) | | | | |
| 7. | Mallard | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 1 | 19 | 6.3 | 0 | 18 (2025) | | | | |
| 8. | Teal | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 1.3 | 0 | 4 (2025) | | | | |
| 9. | Quail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 27 | 9 | 0 | 27 (2025) | | | | |
| 10. | Water Rail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 72 | 0 | 72 | 24 | 0 | 72 (2025) | | | | |
| 11. | Moorhen | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 182 | 0 | 182 | 61 | 0 | 182 (2025) | | | | |
| 12. | Coot | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 91 | 0 | 91 | 30.3 | 0 | 91 (2025) | | | | |
| 13. | Crane | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 14. | Little Grebe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 9 | 3 | 0 | 9 (2025) | | | | |
| 15. | Stone Curlew | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 16. | Oystercatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 11 | 3.7 | 0 | 11 (2025) | | | | |
| 17. | Golden Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 1 | 0 | 3 (2025) | | | | |
| 18. | Ringed Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 19. | Little Ringed Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 15 | 5 | 0 | 15 (2025) | | | | |
| 20. | Lapwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2025) | | | | |
| 21. | Whimbrel | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 22. | Curlew | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2025) | | | | |
| 23. | Common Sandpiper | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 34 | 0 | 34 | 11.3 | 0 | 34 (2025) | | | | |
| 24. | Green Sandpiper | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 16 | 5.3 | 0 | 16 (2025) | | | | |
| 25. | Redshank | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 1.3 | 0 | 4 (2025) | | | | |
| 26. | Greenshank | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 10 | 3.3 | 0 | 10 (2025) | | | | |
| 27. | Black-headed Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 6 | 2 | 0 | 6 (2025) | | | | |
| 28. | Bittern | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 29. | Night Heron | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 30. | Grey Heron | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 65 | 1 | 67 | 22.3 | 0 | 65 (2025) | | | | |
| 31. | Barn Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 24 | 8 | 0 | 24 (2025) | | | | |
| 32. | Tawny Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | | | | | |
| 33. | Magpie | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | | | | |
| 34. | Jackdaw | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 35. | Rook | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 1.3 | 0 | 4 (2025) | | | | |
| 36. | Carrion Crow | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2025) | | | | |
| 37. | Skylark | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 15 | 5 | 0 | 15 (2025) | | | | |
| 38. | Blackcap | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2025) | | | | |
| 39. | Regulus sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 40. | Song Thrush | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 107 | 3693 | 0 | 3800 | 1267 | 0 | 3693 (2025) | | | | |
| 41. | Redwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1158 | 6284 | 16 | 7458 | 2486 | 0 | 6284 (2025) | | | | |
| 42. | Blackbird | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 354 | 0 | 376 | 125 | 0 | 354 (2025) | | | | |
| 43. | Spotted Flycatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 11 | 3.7 | 0 | 11 (2025) | | | | |
| 44. | flycatcher sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2025) | | | | |
| 45. | Robin | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 1086 | 0 | 1097 | 366 | 1 | 1086 (2025) | | | | |
| 46. | Black Redstart | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 47. | Tree Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0.7 | 0 | 2 (2025) | | | | |
| 48. | Ortolan Bunting | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| 49. | Species unidentified | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 98 | 0 | 98 | 32.7 | 0 | 98 (2025) | | | | |
| 50. | passerine sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.3 | 0 | 1 (2025) | | | | |
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Present | Year Maximum | |
| |
Totals |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 1309 | 12194 | 18 | 13521 | 4507 | 2 | | |
| |
Observation hours |
| | | | | | | 332:35 | 2,236:22 | 87:00 | 2,655:57 | 885:19 | | | |