Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 2 93:00
2001 3 287:00
2002 12 316:00
2003 23 382:42
2004 9 342:37
2005 10 554:39
2006 24 657:43
2007 50 725:19
2008 48 1488:17
2009 30 799:54
2010 30 900:27
2011 56 834:45
2012 19 840:54
2013 26 890:41
2014 14 864:15
2015 33 727:16
2016 25 659:29
2017 45 777:46
2018 45 766:48
2019 9 683:31
2020 30 697:12
 
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