Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 1 5:30
1980 0 2:00
1981 16 143:25
1982 12 100:04
1983 6 76:05
1984 11 157:55
1985 34 193:05
1986 12 180:40
1987 5 99:15
1988 15 216:00
1989 16 269:46
1990 19 262:45
1991 75 405:47
1992 41 645:00
1993 60 397:58
1994 54 286:00
1995 60 224:45
1996 27 328:00
1997 50 356:45
1998 62 339:30
1999 67 267:15
2000 54 261:30
2001 94 524:35
2002 89 526:15
2003 81 567:15
2004 118 455:05
2005 145 601:15
2006 38 389:55
2007 83 432:55
2008 201 525:55
2009 61 399:05
2010 43 249:40
2011 135 319:15
2012 53 231:35
2013 35 270:55
2014 40 291:35
2015 18 177:30
2016 49 230:15
2017 50 250:05
2018 40 318:16
2019 90 584:19
2020 72 587:17
2021 27 646:27
 
Partners