Select until 10 March
Totals Guyancourt 2017 - 2026
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Present | Year
Maximum | |
| 1. | Moorhen | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4 | 8 | 2.7 | 0 | 4 (2023) | | | | |
| 2. | Coot | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 8 | 2.7 | 0 | 7 (2026) | | | | |
| 3. | Little Grebe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.3 | 0 | 1 (2026) | | | | |
| 4. | Stone Curlew | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.3 | 0 | 1 (2023) | | | | |
| 5. | Grey Heron | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0.7 | 0 | 2 (2026) | | | | |
| 6. | Redwing | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 7 | 2.3 | 0 | 7 (2026) | | | | |
| 7. | Spotted Flycatcher | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.3 | 0 | 1 (2024) | | | | |
| 8. | Tree Pipit | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 6 | 2 | 0 | 6 (2024) | | | | |
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Present | Year
Maximum | |
| |
Totals |
0 | 0 | 0 | 0 | 0 | 0 | 5 | 8 | 0 | 21 | 34 | 11 | 0 | | |
| |
Observation hours |
| | | | | | 9:30 | 18:00 | | 25:40 | 53:10 | 17:43 | | | |
