The Cass County Conservation Board is asking you…When do you think the first Trumpeter Swan will arrive at the Schildberg Quarry? Please call in your prediction (by November 11th) to the Conservation Board at 712-769-2372, leave a message and return phone number if we are not in. Duplicate dates will not be allowed. For example, if a caller predicts November 25th, no one else will be allowed to predict that arrival date. So, call anytime until November 11th to make your prediction! One prediction per family, please. The sponsors of this contest will determine the official arrival of more than 6 trumpeter swans to Lake 4, and if they arrive before the Nov. 11th no more dates will be taken. The winner will receive a Trumpeter Swan Prize from the Cass County Conservation Board. Sorry, this contest is only for residents of Cass County.
Trumpeter Swans have visited the Schildberg Quarry for, at least, twenty-seven out of the last twenty-eight winters. Arrival and departure dates of the swans have been as follows:
- 1997/1998 December 18 – January 2
- 1998/1999 Nothing on record
- 1999/2000 December 25 – February 15
- 2000/2001 November 23 – March 6
- 2001/2002 December 25 – February 24
- 2002/2003 November 23 – March 15
- 2003/2004 November 26 – March 21
- 2004/2005 November 25 – March 18
- 2005/2006 November 17 – March 5
- 2006/2007 October 30 – March 9
- 2007/2008 November 22- February 14
- 2008/2009 November 18- March 12
- 2009-2010 November 19 – January 5
- 2010-2011 November 5 – February 10
- 2011/2012 November 17 – February 21
- 2012/2013 November 24– March 4
- 2013/2014 November 12- April 7
- 2014/2015 November 11- April 6
- 2015/2016 November 22- March 24
- 2016/2017 November 19- March 9
- 2017/2018 November 9- March 20
- 2018/2019 November 11- January 23
- 2019/2020 November 8- March 3
- 2020/2021 November 30- February 13
- 2021/2022 November 22- February 28
- 2022/2023 November 22- February 22
- 2023/2024 December 2- January 30
- 2024/2025 December 1- February 24
- 2025/2026 December 2- February 23



