Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
2000 962 93:00
2001 1953 287:00
2002 2253 316:00
2003 1884 382:42
2004 3303 342:37
2005 5248 554:39
2006 7453 657:43
2007 2005 725:19
2008 5603 1488:17
2009 6000 799:54
2010 3792 900:27
2011 6908 834:45
2012 5920 840:54
2013 10249 890:41
2014 5854 864:15
2015 5250 727:16
2016 2373 659:29
2017 1473 777:46
2018 7831 766:48
2019 2326 683:31
2020 3462 839:09
2021 158 545:41
 
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