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 3 2:30
1982 0 1:50
1983 5 13:30
1984 4 12:30
1985 1 20:15
1986 0 2:00
1987 4 3:30
1988 0 3:15
1989 1 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 0 6:46
1994 0 1:00
1995 5 9:45
1996 0 5:15
1997 1 6:15
1998 0 6:30
1999 0 4:15
2000 5 8:45
2001 19 24:00
2002 6 11:30
2003 0 6:14
2004 2 52:15
2005 77 370:45
2006 83 560:00
2007 46 568:00
2008 68 623:30
2009 25 346:10
2010 19 257:51
2011 44 379:30
2012 72 474:30
2013 20 449:30
2014 97 366:57
2015 35 241:57
2016 42 386:02
2017 55 309:56
2018 35 319:16
2019 19 243:15
2020 54 304:06
2021 26 145:36
 
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