Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 0 5:30
1980 0 2:00
1981 6 143:25
1982 2 100:04
1983 25 76:05
1984 0 157:55
1985 0 193:05
1986 11 180:40
1987 4 99:15
1988 5 216:00
1989 1 269:46
1990 4 262:45
1991 63 405:47
1992 2 645:00
1993 190 397:58
1994 4 286:00
1995 9 224:45
1996 34 328:00
1997 30 356:45
1998 49 339:30
1999 7 267:15
2000 1 261:30
2001 47 525:35
2002 0 526:15
2003 5 567:15
2004 32 455:05
2005 45 601:15
2006 16 389:55
2007 23 432:55
2008 7 525:55
2009 25 399:05
2010 5 249:40
2011 15 319:15
2012 15 231:35
2013 51 270:55
2014 5 291:35
2015 0 177:30
2016 0 230:15
2017 0 250:05
2018 7 318:16
2019 38 584:19
2020 20 587:17
2021 10 646:27
2022 7 477:05
 
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