Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1900 15 5:30
1980 1 2:00
1981 109 143:25
1982 88 100:04
1983 57 76:05
1984 110 157:55
1985 119 193:05
1986 148 180:40
1987 73 99:15
1988 146 216:00
1989 355 269:46
1990 280 262:45
1991 484 405:47
1992 693 645:00
1993 673 397:58
1994 427 286:00
1995 343 224:45
1996 476 328:00
1997 320 356:45
1998 428 339:30
1999 433 267:15
2000 477 261:30
2001 800 525:35
2002 914 526:15
2003 625 567:15
2004 720 455:05
2005 552 601:15
2006 538 389:55
2007 641 432:55
2008 585 525:55
2009 458 399:05
2010 170 249:40
2011 492 319:15
2012 218 231:35
2013 549 270:55
2014 280 291:35
2015 340 177:30
2016 361 230:15
2017 361 250:05
2018 273 318:16
2019 549 584:19
2020 755 587:17
2021 334 646:27
2022 595 477:05
 
Partners