Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 0 1:15
1972 0 0:30
1974 0 6:30
1977 0 2:30
1982 0 1:50
1983 0 13:30
1984 1 12:30
1985 0 20:15
1986 0 2:00
1987 0 3:30
1988 0 3:15
1989 0 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 1 6:46
1994 0 1:00
1995 0 9:45
1996 0 5:15
1997 0 6:15
1998 3 6:30
1999 1 4:15
2000 1 8:45
2001 0 24:00
2002 0 11:30
2003 0 6:14
2004 4 52:15
2005 131 370:45
2006 6608 560:00
2007 37842 568:00
2008 37137 623:30
2009 13049 346:10
2010 1914 257:51
2011 7061 379:30
2012 22787 474:30
2013 6947 449:30
2014 1356 366:57
2015 3464 241:57
2016 5599 386:02
2017 16479 309:56
2018 205 319:16
2019 5068 243:15
2020 1507 148:25
 
Partners