Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1971 19 1:15
1972 0 0:30
1974 93 6:30
1977 0 2:30
1982 253 1:50
1983 968 13:30
1984 23 12:30
1985 568 20:15
1986 0 2:00
1987 0 3:30
1988 0 3:15
1989 0 9:30
1990 0 0:00
1991 0 4:30
1992 0 3:00
1993 0 6:46
1994 0 1:00
1995 13 9:45
1996 600 5:15
1997 1510 6:15
1998 70 6:30
1999 0 4:15
2000 280 8:45
2001 7 24:00
2002 690 11:30
2003 50 6:14
2004 2287 52:15
2005 39118 370:45
2006 60775 560:00
2007 34492 568:00
2008 23216 623:30
2009 22830 346:10
2010 15772 257:51
2011 17491 379:30
2012 16236 474:30
2013 13629 449:30
2014 44959 366:57
2015 1950 241:57
2016 18440 386:02
2017 9801 309:56
2018 29153 319:16
2019 11426 243:15
 
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