Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1972 15 31:00
1973 11 18:15
1974 0 7:45
1975 26 18:30
1976 8 66:30
1977 4 23:45
1978 0 116:45
1979 20 71:45
1980 2317 109:00
1981 31 78:00
1982 14 39:00
1983 74 71:00
1984 238 30:15
1985 194 98:00
1986 29 41:30
1987 211 42:15
1988 35 55:00
1989 4 47:15
1990 136 33:00
1991 39 18:00
1992 21 28:30
1993 12 25:45
1994 13 40:00
1995 0 15:15
1996 0 5:00
1997 0 26:30
1998 40 20:00
1999 0 26:45
2000 2 27:30
2001 14 23:00
2002 1 26:55
2003 3 37:45
2004 17 30:10
2005 95 34:00
2006 1 41:33
2007 7 83:14
2008 16 56:33
2009 263 76:07
2010 53 52:50
2011 97 80:30
2012 89 94:05
2013 82 66:27
2014 25 41:10
2015 31 49:05
2016 137 19:00
2017 164 123:39
2018 113 89:34
2019 2127 98:07
2020 19 108:43
 
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