Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2000 5 93:00
2001 49 287:00
2002 137 316:00
2003 231 382:42
2004 90 342:37
2005 342 554:39
2006 339 657:43
2007 264 725:19
2008 181 1488:17
2009 190 799:54
2010 292 900:27
2011 141 834:45
2012 245 840:54
2013 317 890:41
2014 278 864:15
2015 165 727:16
2016 366 659:29
2017 439 777:46
2018 468 766:48
2019 170 683:31
2020 430 697:12
 
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