Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 3 287:00
2002 5 316:00
2003 2 382:42
2004 4 342:37
2005 0 554:39
2006 0 657:43
2007 5 725:19
2008 4 1488:17
2009 1 799:54
2010 1 900:27
2011 2 834:45
2012 1 840:54
2013 0 890:41
2014 8 864:15
2015 1 727:16
2016 4 659:29
2017 3 777:46
2018 3 766:48
2019 2 683:31
2020 0 839:09
2021 0 64:53
 
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