Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 22 5:30
1980 0 2:00
1981 545 143:25
1982 851 100:04
1983 57 76:05
1984 292 157:55
1985 163 193:05
1986 683 180:40
1987 289 99:15
1988 348 216:00
1989 410 269:46
1990 500 262:45
1991 917 405:47
1992 457 645:00
1993 1238 397:58
1994 347 286:00
1995 398 224:45
1996 1685 328:00
1997 367 356:45
1998 1026 339:30
1999 945 267:15
2000 527 261:30
2001 2773 524:35
2002 1734 526:15
2003 1591 567:15
2004 723 455:05
2005 1327 601:15
2006 1145 389:55
2007 1606 432:55
2008 300 525:55
2009 389 399:05
2010 310 249:40
2011 1847 319:15
2012 597 231:35
2013 1694 270:55
2014 608 291:35
2015 879 177:30
2016 431 230:15
2017 1045 250:05
2018 307 318:16
2019 587 584:19
2020 1105 587:17
2021 184 646:27
2022 1174 442:55
 
Partners