Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites
Don't use roostmigration

Year Totals Observation hours
1900 91 5:30
1980 0 2:00
1981 2586 143:25
1982 2751 100:04
1983 472 76:05
1984 7671 157:55
1985 3868 193:05
1986 1835 180:40
1987 2087 99:15
1988 4725 216:00
1989 2803 269:46
1990 4575 262:45
1991 9021 405:47
1992 3508 645:00
1993 6231 397:58
1994 3881 286:00
1995 1531 224:45
1996 6199 328:00
1997 4240 356:45
1998 1155 339:30
1999 2002 267:15
2000 2227 261:30
2001 4176 525:35
2002 3553 526:15
2003 3048 567:15
2004 1742 455:05
2005 5456 601:15
2006 3493 389:55
2007 6165 432:55
2008 5682 525:55
2009 3994 399:05
2010 1674 249:40
2011 4215 319:15
2012 1020 231:35
2013 6429 270:55
2014 897 291:35
2015 685 177:30
2016 1326 230:15
2017 3717 250:05
2018 1329 318:16
2019 2625 584:19
2020 3466 587:17
2021 1436 646:27
2022 2684 525:10
 
Partners