Cygnus cygnus (Whooper Swan)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2024 | 1 | 46 | 46 | 47 |
| 2023 | 1 | 57 | 56 | 64 |
| 2022 | 1 | 51 | 51 | 52 |
| 2021 | 1 | 42 | 42 | 47 |
| 2020 | 1 | 46 | 45 | 64 |
| 2019 | 1 | 44 | 40 | 59 |
| 2018 | 1 | 51 | 48 | 54 |
| 2017 | 1 | 28 | 28 | 31 |
| 2016 | 1 | 35 | 34 | 50 |
| 2015 | 1 | 53 | 48 | 59 |
| 2014 | 1 | 23 | 23 | 25 |
| 2013 | 1 | 24 | 23 | 53 |
| 2012 | 1 | 44 | 43 | 51 |
| 2011 | 1 | 22 | 22 | 27 |
| 2010 | 1 | 26 | 23 | 26 |
| 2009 | 1 | 12 | 12 | 13 |
| 2008 | 1 | 9 | 9 | 10 |
| 2007 | 1 | 6 | 6 | 6 |
| 2004 | 1 | 2 | 2 | 2 |
| 2003 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 2 | 2 | 2 |
| Totalt alle år | 1 | 430 | 378 | 743 |