Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
Don't use roostmigration

Year Totals Observation hours
1956 2 13:45
1958 0 11:00
1959 0 3:20
1960 1 1:45
1961 12 8:30
1962 0 0:00
1963 0 8:00
1977 2 29:30
1978 12 27:30
1982 3 3:00
1986 56 50:00
1987 463 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 0 44:15
2005 1702 1018:50
2006 36 647:30
2007 1500 816:41
2008 1125 648:15
2009 0 446:08
2010 0 645:00
2011 0 681:30
2012 0 422:55
2013 0 613:10
2014 206 473:05
2015 0 560:45
2016 0 427:55
2017 0 576:05
2018 0 430:45
2019 0 455:27
2020 0 506:07
2021 917 1013:52
2022 1535 726:25
2023 1159 118:24
 
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