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 0 2:30
1982 0 1:50
1983 161 13:30
1984 15 12:30
1985 248 20:15
1986 0 2:00
1987 11 3:30
1988 7 3:15
1989 88 9:30
1990 0 0:00
1991 0 4:30
1992 10 3:00
1993 0 6:46
1994 0 1:00
1995 111 9:45
1996 81 5:15
1997 30 6:15
1998 0 6:30
1999 17 4:15
2000 103 8:45
2001 1525 24:00
2002 33 11:30
2003 10 6:14
2004 542 52:15
2005 2785 370:45
2006 4807 560:00
2007 2180 568:00
2008 7603 623:30
2009 1625 346:10
2010 1506 257:51
2011 1646 379:30
2012 3651 474:30
2013 2345 449:30
2014 2863 366:57
2015 1270 241:57
2016 930 386:02
2017 2246 309:56
2018 2026 319:16
2019 551 243:15
 
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