Number of days from start of observed mating to laying of first egg |
| 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Egg #1 | ?10 | 19 | 13 | 7 | 13 | 12 | 12 | ?12 | ?8 | 12 | 12 |
| 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015* | Egg #1 | 11 | 11 | 9 | 9 | 10 | 15 | 19 | 13 | 14 |
*new female
| 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015* | Egg #1 | 10 | 11 | 12 | 12 | 15 | 16 | 13 | 15 | 13 | 14 | ? |
*resident male 11(98) does not return, several new males around
| 2011 | 2012 | 2013* | 2014 | 2015 | Egg #1 | 14 | 16 | 19 | 17 | 13 |
*new female
|