Graph

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

Year Totals Observation hours
2000 0 93:00
2001 0 287:00
2002 0 316:00
2003 0 382:42
2004 0 342:37
2005 0 554:39
2006 0 657:43
2007 0 725:19
2008 0 1488:17
2009 211 799:54
2010 261 900:27
2011 95 834:45
2012 73 840:54
2013 53 890:41
2014 49 864:15
2015 14 727:16
2016 149 659:29
2017 164 777:46
2018 37 766:48
2019 50 683:31
2020 170 839:09
2021 770 921:00
2022 25 853:07
 
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