Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 2 93:00
2001 8 287:00
2002 189 316:00
2003 305 382:42
2004 3 342:37
2005 32 554:39
2006 23 657:43
2007 52 725:19
2008 23 1488:17
2009 42 799:54
2010 15 900:27
2011 15 834:45
2012 110 840:54
2013 66 890:41
2014 12 864:15
2015 3 727:16
2016 38 659:29
2017 15 777:46
2018 18 766:48
2019 15 683:31
2020 2 839:09
2021 0 87:11
 
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