Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1956 0 13:45
1958 1 11:00
1959 0 3:20
1960 0 1:45
1961 1 8:30
1962 0 0:00
1963 0 8:00
1977 0 29:30
1978 2 27:30
1982 0 3:00
1986 0 50:00
1987 0 56:35
2001 0 0:00
2002 0 0:00
2003 0 12:30
2004 9 44:15
2005 1470 1018:50
2006 1441 647:30
2007 1665 816:41
2008 522 648:15
2009 614 446:08
2010 329 645:00
2011 569 681:30
2012 134 422:55
2013 114 613:10
2014 226 473:05
2015 246 560:45
2016 421 427:55
2017 355 576:05
2018 71 430:45
2019 335 455:27
2020 315 506:07
2021 428 1023:39
2022 257 446:43
 
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