Species: Great Cormorant (Phalacrocorax carbo)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2024 | 3 | 38 | 38 | 41 |
| 2023 | 3 | 47 | 46 | 50 |
| 2022 | 3 | 67 | 67 | 77 |
| 2021 | 3 | 67 | 65 | 76 |
| 2020 | 2 | 53 | 53 | 69 |
| 2019 | 3 | 60 | 58 | 69 |
| 2018 | 3 | 49 | 45 | 52 |
| 2017 | 3 | 36 | 36 | 55 |
| 2016 | 3 | 34 | 34 | 52 |
| 2015 | 3 | 28 | 28 | 31 |
| 2014 | 2 | 24 | 24 | 27 |
| 2013 | 1 | 19 | 18 | 31 |
| 2012 | 1 | 16 | 16 | 20 |
| 2011 | 1 | 14 | 14 | 17 |
| 2010 | 1 | 26 | 23 | 31 |
| 2009 | 1 | 9 | 8 | 10 |
| 2008 | 1 | 8 | 4 | 8 |
| 2007 | 1 | 4 | 4 | 4 |
| 2006 | 1 | 1 | 1 | 1 |
| 2005 | 1 | 3 | 3 | 6 |
| 2004 | 1 | 1 | 1 | 1 |
| 2003 | 1 | 1 | 1 | 2 |
| 2002 | 1 | 2 | 2 | 2 |
| Totalt alle år | 3 | 346 | 315 | 732 |