Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 0 287:00
2002 3 316:00
2003 4 382:42
2004 0 342:37
2005 32 554:39
2006 5 657:43
2007 10 725:19
2008 0 1488:17
2009 1 799:54
2010 0 900:27
2011 0 834:45
2012 0 840:54
2013 1 890:41
2014 2 864:15
2015 1 727:16
2016 2 659:29
2017 1 777:46
2018 2 766:48
2019 0 683:31
2020 1 839:09
2021 0 921:00
 
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