Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 423 287:00
2002 34 316:00
2003 123 382:42
2004 2716 342:37
2005 1793 554:39
2006 1455 657:43
2007 4714 725:19
2008 3115 1488:17
2009 3358 799:54
2010 3349 900:27
2011 5901 834:45
2012 7000 840:54
2013 10576 890:41
2014 6454 864:15
2015 20456 727:16
2016 11341 659:29
2017 2477 777:46
2018 6309 766:48
2019 4440 683:31
2020 24934 839:09
 
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