Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 19 287:00
2002 14 316:00
2003 13 382:42
2004 9 342:37
2005 40 554:39
2006 7 657:43
2007 32 725:19
2008 54 1488:17
2009 13 799:54
2010 26 900:27
2011 33 834:45
2012 0 840:54
2013 1 890:41
2014 0 864:15
2015 0 727:16
2016 0 659:29
2017 0 777:46
2018 1 766:48
2019 1 683:31
2020 0 652:04
 
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