Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites
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Year Totals Observation hours
1997 10 63:45
1998 8 48:00
1999 30 79:45
2000 1 114:15
2001 4 130:55
2002 53 311:10
2003 60 434:00
2004 87 539:15
2005 135 741:30
2006 73 671:30
2007 70 742:30
2008 181 700:00
2009 81 629:45
2010 79 570:15
2011 116 520:15
2012 225 543:15
2013 63 410:30
2014 87 500:15
2015 65 683:45
2016 117 688:45
2017 51 671:00
2018 127 739:00
2019 209 737:00
2020 149 795:00
2021 112 787:15
2022 148 648:40
2023 0 88:17
 
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