Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 1 1:15
1972 0 0:30
1974 21 6:30
1977 6 2:30
1982 0 1:50
1983 132 13:30
1984 198 12:30
1985 62 20:15
1986 0 2:00
1987 177 3:30
1988 35 3:15
1989 79 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 0 6:46
1994 0 1:00
1995 118 9:45
1996 0 5:15
1997 0 6:15
1998 0 6:30
1999 10 4:15
2000 87 8:45
2001 29 24:00
2002 0 11:30
2003 2 6:14
2004 128 52:15
2005 291 370:45
2006 252 560:00
2007 128 568:00
2008 254 623:30
2009 44 346:10
2010 96 257:51
2011 215 379:30
2012 231 474:30
2013 136 449:30
2014 152 366:57
2015 13 241:57
2016 17 386:02
2017 44 309:56
2018 34 319:16
2019 21 243:15
 
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