Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 0 93:00
2001 15 287:00
2002 16 316:00
2003 0 382:42
2004 67 342:37
2005 146 554:39
2006 5 657:43
2007 4 725:19
2008 172 1488:17
2009 10 799:54
2010 62 900:27
2011 1 834:45
2012 17 840:54
2013 182 890:41
2014 39 864:15
2015 16 727:16
2016 31 659:29
2017 54 777:46
2018 35 766:48
2019 23 683:31
2020 4 839:09
2021 115 921:00
2022 1 189:17
 
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