Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 0 287:00
2002 4 316:00
2003 12 382:42
2004 8 342:37
2005 16 554:39
2006 13 657:43
2007 108 725:19
2008 144 1488:17
2009 23 799:54
2010 64 900:27
2011 34 834:45
2012 128 840:54
2013 116 890:41
2014 149 864:15
2015 38 727:16
2016 6 659:29
2017 51 777:46
2018 24 766:48
2019 35 683:31
2020 10 839:09
2021 15 758:38
 
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