Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 0 287:00
2002 0 316:00
2003 0 382:42
2004 0 342:37
2005 7 554:39
2006 0 657:43
2007 18 725:19
2008 7 1488:17
2009 44 799:54
2010 103 900:27
2011 93 834:45
2012 34 840:54
2013 57 890:41
2014 80 864:15
2015 101 727:16
2016 42 659:29
2017 135 777:46
2018 28 766:48
2019 75 683:31
2020 34 839:09
2021 128 766:08
 
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