Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 0 1:15
1972 1 0:30
1974 0 6:30
1977 0 2:30
1982 0 1:50
1983 3 13:30
1984 0 12:30
1985 1 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 4 5:15
1997 0 6:15
1998 5 6:30
1999 0 4:15
2000 0 8:45
2001 0 24:00
2002 0 11:30
2003 0 6:14
2004 7 52:15
2005 103 370:45
2006 239 560:00
2007 102 568:00
2008 118 623:30
2009 34 346:10
2010 71 257:51
2011 54 379:30
2012 154 474:30
2013 144 449:30
2014 124 366:57
2015 69 241:57
2016 85 386:02
2017 116 309:56
2018 80 319:16
2019 51 243:15
 
Partners