Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 1 63:45
1998 2 48:00
1999 4 79:45
2000 3 114:15
2001 3 130:55
2002 57 311:10
2003 50 434:00
2004 102 539:15
2005 84 741:30
2006 41 671:30
2007 121 742:30
2008 78 700:00
2009 40 629:45
2010 89 570:15
2011 180 520:15
2012 134 543:15
2013 103 410:30
2014 181 500:15
2015 31 683:45
2016 74 688:45
2017 36 671:00
2018 42 739:00
2019 40 737:00
2020 96 795:00
2021 0 18:30
 
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