Totals Lekkerkerk (nacht) 2011 - 2020
| Species | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | Totals | Average | Present | Year Maximum | |||||
| 1. | Canada Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 6 | 24 | 12 | 0 | 18 (2019) | ||||
| 2. | Barnacle Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 172 | 5 | 177 | 89 | 0 | 172 (2019) | ||||
| 3. | Greylag Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 135 | 6 | 141 | 71 | 0 | 135 (2019) | ||||
| 4. | Eurasian White-fronted Goose | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 10 | 29 | 14.5 | 0 | 19 (2019) | ||||
| 5. | Mute Swan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 5 | 2.5 | 0 | 5 (2019) | ||||
| 6. | Gadwall | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 1.5 | 0 | 3 (2019) | ||||
| 7. | Wigeon | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 330 | 341 | 171 | 0 | 330 (2020) | ||||
| 8. | Water Rail | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.5 | 0 | 1 (2020) | ||||
| 9. | Coot | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 2 | 0 | 4 (2020) | ||||
| 10. | Crane | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 2 | 0 | 4 (2020) | ||||
| 11. | Oystercatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 8 | 4 | 0 | 8 (2020) | ||||
| 12. | Lapwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 1 | 17 | 8.5 | 0 | 16 (2019) | ||||
| 13. | Golden Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 1.5 | 0 | 3 (2019) | ||||
| 14. | Grey Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 15. | Ringed Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 16. | Little Ringed Plover | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 4 | 2 | 0 | 3 (2019) | ||||
| 17. | Curlew | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 17 | 28 | 14 | 0 | 17 (2020) | ||||
| 18. | Common Sandpiper | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 7 | 3.5 | 0 | 7 (2019) | ||||
| 19. | Redshank | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.5 | 0 | 1 (2020) | ||||
| 20. | Black-headed Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 53 | 53 | 26.5 | 0 | 53 (2020) | ||||
| 21. | Laridae sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.5 | 0 | 1 (2020) | ||||
| 22. | Bittern | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 1 | 0 | 2 (2019) | ||||
| 23. | Night Heron | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 24. | Grey Heron | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 10 | 37 | 18.5 | 0 | 27 (2019) | ||||
| 25. | Tawny Owl | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |||||
| 26. | Carrion Crow | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 27. | Song Thrush | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 28 | 14 | 0 | 28 (2019) | ||||
| 28. | Redwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 62 | 3 | 65 | 32.5 | 0 | 62 (2019) | ||||
| 29. | Blackbird | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 16 | 8 | 0 | 16 (2019) | ||||
| 30. | Robin | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 26 | 13 | 0 | 26 (2019) | ||||
| 31. | Tree Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 1 | 0 | 2 (2019) | ||||
| 32. | Yellowhammer | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 33. | Ortolan Bunting | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 34. | bunting sp. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0.5 | 0 | 1 (2019) | ||||
| 35. | Species unidentified | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 8 | 20 | 10 | 0 | 12 (2019) | ||||
| Species | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | Totals | Average | Present | Year Maximum | |||||
| Totals | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 585 | 469 | 1054 | 527 | 1 | ||||||
| Observation hours | 147:13 | 28:57 | 176:10 | 88:05 | |||||||||||||||
