Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 318 31:00
1973 19 18:15
1974 56 7:45
1975 116 18:30
1976 47 66:30
1977 143 23:45
1978 243 116:45
1979 357 71:45
1980 1666 109:00
1981 1268 78:00
1982 49 39:00
1983 789 71:00
1984 610 30:15
1985 2741 98:00
1986 1120 41:30
1987 9 42:15
1988 162 55:00
1989 42 47:15
1990 475 33:00
1991 350 18:00
1992 350 28:30
1993 130 25:45
1994 5938 40:00
1995 35 15:15
1996 0 5:00
1997 0 26:30
1998 0 20:00
1999 0 26:45
2000 0 27:30
2001 350 23:00
2002 0 26:55
2003 2 37:45
2004 3 30:10
2005 0 34:00
2006 0 41:33
2007 47 83:14
2008 2 56:33
2009 168 76:07
2010 1 52:50
2011 0 80:30
2012 15 94:05
2013 500 66:27
2014 115 41:10
2015 476 49:05
2016 0 19:00
2017 1492 123:39
2018 217 89:34
2019 757 98:07
2020 1681 108:43
2021 0 1:30
 
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