Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 5 287:00
2002 0 316:00
2003 0 382:42
2004 0 342:37
2005 0 554:39
2006 0 657:43
2007 1 725:19
2008 0 1488:17
2009 0 799:54
2010 0 900:27
2011 3 834:45
2012 0 840:54
2013 7 890:41
2014 2 864:15
2015 0 727:16
2016 0 659:29
2017 0 777:46
2018 0 766:48
2019 9 683:31
2020 7 648:57
 
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