Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 2 13:45
1958 0 11:00
1959 2 3:20
1960 0 1:45
1961 0 8:30
1962 0 0:00
1963 0 8:00
1977 10 29:30
1978 17 27:30
1982 0 3:00
1986 25 50:00
1987 63 56:35
2001 0 0:00
2002 0 0:00
2003 8 12:30
2004 12 44:15
2005 1838 1018:50
2006 1108 647:30
2007 1573 816:41
2008 1089 648:15
2009 826 446:08
2010 1509 645:00
2011 739 681:30
2012 535 422:55
2013 982 613:10
2014 786 473:05
2015 957 560:45
2016 481 427:55
2017 866 576:05
2018 1017 430:45
2019 733 455:27
2020 352 506:07
2021 1541 1023:39
2022 887 342:42
 
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