Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1956 4403 13:45
1977 2535 29:30
1978 16527 27:30
1982 344 3:00
1986 334 50:00
1987 4588 56:35
2001 0 0:00
2002 0 0:00
2003 365 12:30
2004 1859 44:15
2005 62180 1018:50
2006 38868 647:30
2007 39811 816:41
2008 31925 648:15
2009 15559 446:08
2010 24353 645:00
2011 24764 681:30
2012 14595 422:55
2013 39252 613:10
2014 29952 473:05
2015 18564 560:45
2016 18612 427:55
2017 35369 576:05
2018 22625 430:45
2019 23710 455:27
2020 14667 397:09
 
Partners