Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 420 1:15
1972 0 0:30
1974 435 6:30
1977 0 2:30
1982 69 1:50
1983 1537 13:30
1984 2176 12:30
1985 1766 20:15
1986 0 2:00
1987 290 3:30
1988 200 3:15
1989 1215 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 60 6:46
1994 0 1:00
1995 1045 9:45
1996 300 5:15
1997 0 6:15
1998 600 6:30
1999 0 4:15
2000 235 8:45
2001 1650 24:00
2002 506 11:30
2003 95 6:14
2004 1598 52:15
2005 14966 370:45
2006 19964 560:00
2007 11249 568:00
2008 57531 623:30
2009 12970 346:10
2010 9339 257:51
2011 21271 379:30
2012 18587 474:30
2013 18730 449:30
2014 27202 366:57
2015 18882 241:57
2016 42633 386:02
2017 28425 309:56
2018 20570 319:16
2019 27280 243:15
2020 1141 129:30
 
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