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 14 382:42
2004 0 342:37
2005 33 554:39
2006 314 657:43
2007 36 725:19
2008 5 1488:17
2009 39 799:54
2010 63 900:27
2011 53 834:45
2012 28 840:54
2013 50 890:41
2014 2 864:15
2015 413 727:16
2016 477 659:29
2017 525 777:46
2018 637 766:48
2019 968 683:31
2020 3904 839:09
 
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