Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 0 5:30
1980 0 2:00
1981 2 143:25
1982 0 100:04
1983 4 76:05
1984 0 157:55
1985 3 193:05
1986 1 180:40
1987 0 99:15
1988 1 216:00
1989 7 269:46
1990 3 262:45
1991 3 405:47
1992 7 645:00
1993 2 397:58
1994 23 286:00
1995 3 224:45
1996 40 325:15
1997 4 356:45
1998 6 339:30
1999 4 267:15
2000 9 261:30
2001 13 524:35
2002 286 526:15
2003 19 567:15
2004 45 455:05
2005 87 601:15
2006 171 389:55
2007 16 432:55
2008 35 525:55
2009 17 399:05
2010 5 249:40
2011 1 319:15
2012 20 231:35
2013 22 270:55
2014 0 291:35
2015 2 177:30
2016 2 230:15
2017 1 250:05
2018 2 318:16
2019 1 584:19
2020 7 587:17
2021 0 539:42
 
Partners