Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 175 93:00
2001 581 287:00
2002 113 316:00
2003 1777 382:42
2004 1481 342:37
2005 1967 554:39
2006 630 657:43
2007 4245 725:19
2008 3164 1488:17
2009 2628 799:54
2010 6470 900:27
2011 4058 834:45
2012 5612 840:54
2013 1408 890:41
2014 3361 864:15
2015 790 727:16
2016 969 659:29
2017 1848 777:46
2018 2844 766:48
2019 1517 683:31
2020 1350 839:09
2021 6225 920:05
 
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