Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 5 93:00
2001 3 287:00
2002 6 316:00
2003 3 382:42
2004 1 342:37
2005 2 554:39
2006 9 657:43
2007 3 725:19
2008 3 1488:17
2009 0 799:54
2010 0 900:27
2011 0 834:45
2012 1 840:54
2013 3 890:41
2014 3 864:15
2015 2 727:16
2016 2 659:29
2017 0 777:46
2018 1 766:48
2019 2 683:31
2020 2 648:57
 
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