Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 153 39:30
1999 238 19:00
2001 30348 594:30
2002 0 0:00
2005 11788 77:15
2006 5037 32:05
2007 95414 88:45
2008 32623 100:00
2009 58812 52:20
2010 9197 48:05
2011 48071 88:24
2012 121 36:20
2013 29287 37:30
2014 8028 30:40
2015 30331 44:40
2016 24617 163:00
2017 38182 179:29
2018 98633 380:50
2019 376263 344:15
2020 368205 447:51
 
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