Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 306 93:00
2001 515 287:00
2002 962 316:00
2003 894 382:42
2004 1659 342:37
2005 1324 554:39
2006 3176 657:43
2007 2394 725:19
2008 4578 1488:17
2009 1827 799:54
2010 2583 900:27
2011 2457 834:45
2012 2571 840:54
2013 2015 890:41
2014 1984 864:15
2015 1555 727:16
2016 1391 659:29
2017 1798 777:46
2018 2942 766:48
2019 2233 683:31
2020 2156 839:09
2021 2088 921:00
 
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