Select until 25 February
Totals VRS Groenekan - tuinproject IJsselstein 2017 - 2026
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| 1. | Mallard | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 0 | 1 | 1 (2017) | ||||
| 2. | Woodpigeon | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0.6 | 3 | 3 | 5 (2017) | ||||
| 3. | Collared Dove | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 4 | 0.4 | 4 | 0 | 2 (2021) | ||||
| 4. | Black-headed Gull | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2017) | ||||
| 5. | Great Spotted Woodpecker | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0.3 | 3 | 0 | 2 (2017) | ||||
| 6. | Magpie | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2024) | ||||
| 7. | Jackdaw | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 4 | 0.4 | 4 | 0 | 2 (2021) | ||||
| 8. | Coal Tit | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2017) | ||||
| 9. | Blue Tit | 43 | 13 | 35 | 38 | 17 | 14 | 26 | 21 | 31 | 0 | 238 | 24 | 191 | 47 | 43 (2017) | ||||
| 10. | Great Tit | 36 | 39 | 40 | 27 | 17 | 19 | 19 | 13 | 13 | 2 | 225 | 23 | 188 | 37 | 40 (2019) | ||||
| 11. | Long-tailed Tit | 3 | 9 | 9 | 5 | 0 | 4 | 7 | 4 | 4 | 1 | 46 | 4.6 | 40 | 6 | 9 (2018) | ||||
| 12. | Chiffchaff | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 0 | 2 | 0 | 11 | 1.1 | 11 | 0 | 2 (2017) | ||||
| 13. | Blackcap | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.2 | 2 | 0 | 1 (2017) | ||||
| 14. | Firecrest | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 4 | 0.4 | 4 | 0 | 2 (2018) | ||||
| 15. | Goldcrest | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 0.3 | 3 | 0 | 1 (2018) | ||||
| 16. | Wren | 4 | 3 | 1 | 0 | 0 | 1 | 1 | 3 | 0 | 0 | 13 | 1.3 | 8 | 5 | 4 (2017) | ||||
| 17. | Short-toed Tree Creeper | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.4 | 4 | 0 | 2 (2017) | ||||
| 18. | Starling | 5 | 0 | 0 | 0 | 14 | 7 | 16 | 50 | 15 | 0 | 107 | 11 | 102 | 5 | 50 (2024) | ||||
| 19. | Blackbird | 5 | 1 | 0 | 3 | 2 | 2 | 1 | 2 | 1 | 4 | 21 | 2.1 | 19 | 2 | 5 (2017) | ||||
| 20. | Robin | 3 | 4 | 2 | 2 | 5 | 3 | 1 | 3 | 1 | 0 | 24 | 2.4 | 17 | 7 | 5 (2021) | ||||
| 21. | House Sparrow | 11 | 1 | 9 | 15 | 8 | 10 | 7 | 2 | 2 | 0 | 65 | 6.5 | 47 | 18 | 15 (2020) | ||||
| 22. | Dunnock | 5 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 8 | 0.8 | 8 | 0 | 5 (2017) | ||||
| 23. | Chaffinch | 2 | 0 | 0 | 1 | 1 | 7 | 0 | 0 | 1 | 0 | 12 | 1.2 | 12 | 0 | 7 (2022) | ||||
| 24. | Brambling | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.1 | 1 | 0 | 1 (2017) | ||||
| 25. | Greenfinch | 11 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 1.4 | 12 | 2 | 11 (2017) | ||||
| Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly ringed | Retraps | Year Maximum | |||||
| Totals | 144 | 77 | 105 | 94 | 70 | 68 | 79 | 105 | 70 | 7 | 819 | 82 | 686 | 133 | ||||||
| Observation hours | 244:55 | 116:15 | 143:00 | 159:15 | 137:00 | 79:00 | 93:15 | 135:54 | 70:05 | 16:30 | 1,195:09 | 119:31 | ||||||||
