Species: Nuthatch (Sitta europaea)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|
| 2024 | 1 | 4980 | 4890 | 5549 |
| 2023 | 1 | 4873 | 4786 | 5458 |
| 2022 | 1 | 5987 | 5833 | 6680 |
| 2021 | 1 | 6400 | 6238 | 7371 |
| 2020 | 1 | 3641 | 3554 | 4187 |
| 2019 | 1 | 4647 | 4562 | 5333 |
| 2018 | 1 | 4117 | 4010 | 4840 |
| 2017 | 1 | 3439 | 3365 | 4187 |
| 2016 | 1 | 2687 | 2622 | 3216 |
| 2015 | 1 | 2935 | 2854 | 3459 |
| 2014 | 1 | 2300 | 2249 | 2876 |
| 2013 | 1 | 2927 | 2838 | 3645 |
| 2012 | 1 | 1956 | 1907 | 2665 |
| 2011 | 1 | 2169 | 2096 | 2776 |
| 2010 | 1 | 1609 | 1508 | 2170 |
| 2009 | 1 | 444 | 428 | 671 |
| 2008 | 1 | 275 | 251 | 523 |
| 2007 | 1 | 17 | 17 | 63 |
| 2006 | 1 | 13 | 10 | 35 |
| 2005 | 1 | 17 | 15 | 73 |
| 2004 | 1 | 16 | 15 | 58 |
| 2003 | 1 | 5 | 5 | 29 |
| 2002 | 1 | 1 | 1 | 1 |
| 2001 | 1 | 1 | 1 | 1 |
| 2000 | 1 | 1 | 1 | 1 |
| 1999 | 1 | 2 | 2 | 2 |
| 1998 | 1 | 1 | 1 | 1 |
| 1997 | 1 | 1 | 1 | 1 |
| 1996 | 1 | 1 | 1 | 1 |
| 1995 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 2 | 2 | 2 |
| 1993 | 1 | 1 | 1 | 1 |
| 1992 | 1 | 1 | 1 | 1 |
| 1991 | 1 | 1 | 1 | 1 |
| 1990 | 1 | 1 | 1 | 1 |
| 1989 | 1 | 2 | 2 | 2 |
| Totalt alle år | 1 | 23243 | 21033 | 65881 |