Select until 2 February
Totals Beijum, Groningen 2017 - 2026
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly
ringed | Retraps | Year
Maximum | |
| 1. | Black-headed Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 21 | 10.5 | 20 | 1 | 21 (2026) | | | | |
| 2. | Common Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 2 | 4 | 0 | 4 (2026) | | | | |
| 3. | Caspian Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.5 | 1 | 0 | 1 (2026) | | | | |
| 4. | Herring Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 21 | 10.5 | 21 | 0 | 21 (2026) | | | | |
| 5. | Yellow-legged Gull | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.5 | 1 | 0 | 1 (2026) | | | | |
| 6. | Starling | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 47 | 1 | 48 | 24 | 48 | 0 | 47 (2025) | | | | |
| 7. | House Sparrow | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 1 | 21 | 10.5 | 19 | 2 | 20 (2025) | | | | |
| | Species | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Totals | Average | Newly
ringed | Retraps | Year
Maximum | |
| |
Totals |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 67 | 50 | 117 | 59 | 114 | 3 | | |
| |
Observation hours |
| | | | | | | | 51:45 | 5:15 | 57:00 | 28:30 | | | | |
