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 0 100:04
1983 2 76:05
1984 13 157:55
1985 8 193:05
1986 26 180:40
1987 2 99:15
1988 7 216:00
1989 1 269:46
1990 20 262:45
1991 7 405:47
1992 12 645:00
1993 29 397:58
1994 35 286:00
1995 14 224:45
1996 68 325:15
1997 8 356:45
1998 39 339:30
1999 23 267:15
2000 12 261:30
2001 50 524:35
2002 13 526:15
2003 67 567:15
2004 69 455:05
2005 48 601:15
2006 22 389:55
2007 35 432:55
2008 121 525:55
2009 30 399:05
2010 58 249:40
2011 55 319:15
2012 65 231:35
2013 222 270:55
2014 14 291:35
2015 15 177:30
2016 32 230:15
2017 8 250:05
2018 43 318:16
2019 31 584:19
2020 14 587:17
2021 15 644:27
 
Partners