Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2003 0 2806:03
2004 0 515:45
2005 0 1761:54
2006 0 1661:15
2007 0 1742:51
2008 0 1789:51
2009 26 1823:19
2010 2 1846:39
2011 5 1682:59
2012 4 1767:02
2013 4 1810:25
2014 8 1576:54
2015 4 1500:41
2016 12 1749:41
2017 11 1444:36
2018 2 1818:44
2019 9 1585:21
2020 34 1300:25
 
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