Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 0 1:15
1972 0 0:30
1974 4 6:30
1977 0 2:30
1982 0 1:50
1983 10 13:30
1984 0 12:30
1985 63 20:15
1986 0 2:00
1987 0 3:30
1988 111 3:15
1989 21 9:30
1990 0 0:00
1991 70 4:30
1992 0 3:00
1993 0 6:46
1994 0 1:00
1995 16 9:45
1996 80 5:15
1997 330 6:15
1998 36 6:30
1999 0 4:15
2000 101 8:45
2001 152 24:00
2002 7 11:30
2003 0 6:14
2004 387 52:15
2005 4310 370:45
2006 3938 560:00
2007 5147 568:00
2008 7008 623:30
2009 5454 346:10
2010 4326 257:51
2011 4104 379:30
2012 6027 474:30
2013 4398 449:30
2014 6774 366:57
2015 2288 241:57
2016 9648 386:02
2017 5127 309:56
2018 8431 319:16
2019 7001 243:15
2020 1670 121:00
 
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