Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 0 5:30
1980 0 2:00
1981 0 143:25
1982 2 100:04
1983 0 76:05
1984 0 157:55
1985 2 193:05
1986 6 180:40
1987 4 99:15
1988 1 216:00
1989 1 269:46
1990 1 262:45
1991 6 405:47
1992 11 645:00
1993 4 397:58
1994 5 286:00
1995 3 224:45
1996 8 328:00
1997 2 356:45
1998 2 339:30
1999 12 267:15
2000 8 261:30
2001 4 524:35
2002 3 526:15
2003 3 567:15
2004 6 455:05
2005 9 601:15
2006 3 389:55
2007 2 432:55
2008 13 525:55
2009 6 399:05
2010 3 249:40
2011 4 319:15
2012 11 231:35
2013 10 270:55
2014 8 291:35
2015 6 177:30
2016 8 230:15
2017 5 250:05
2018 5 318:16
2019 9 584:19
2020 7 587:17
2021 16 646:27
2022 15 442:55
 
Partners