Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 76 66:45
1998 586 46:00
1999 49 79:15
2000 1109 114:15
2001 119 119:45
2002 2598 311:15
2003 2441 433:15
2004 4202 539:15
2005 4918 741:30
2006 4937 671:30
2007 6101 742:30
2008 3281 700:00
2009 5673 629:45
2010 6682 570:15
2011 4410 520:15
2012 4985 543:15
2013 4498 410:30
2014 2150 500:15
2015 3368 683:45
2016 5297 688:45
2017 6597 671:00
2018 4734 739:00
2019 1233 721:15
 
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