Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 3 5:30
1980 0 2:00
1981 34 143:25
1982 5 100:04
1983 3 76:05
1984 10 157:55
1985 21 193:05
1986 4 180:40
1987 7 99:15
1988 37 216:00
1989 11 269:46
1990 12 262:45
1991 7 405:47
1992 17 645:00
1993 58 397:58
1994 58 286:00
1995 31 224:45
1996 15 325:15
1997 23 356:45
1998 28 339:30
1999 20 267:15
2000 38 261:30
2001 36 524:35
2002 27 526:15
2003 13 567:15
2004 15 455:05
2005 12 601:15
2006 24 389:55
2007 11 432:55
2008 49 525:55
2009 9 399:05
2010 5 249:40
2011 29 319:15
2012 25 231:35
2013 0 270:55
2014 8 291:35
2015 1 177:30
2016 9 230:15
2017 9 250:05
2018 9 318:16
2019 4 584:19
2020 7 587:17
2021 5 563:27
 
Partners