Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 19:00
2001 2 594:30
2002 0 0:00
2005 5 77:15
2006 5 32:05
2007 4 88:45
2008 1 100:00
2009 1 52:20
2010 1 48:05
2011 3 88:24
2012 2 36:20
2013 1 37:30
2014 0 30:40
2015 1 44:40
2016 0 163:00
2017 0 179:29
2018 9 380:50
2019 15 344:15
2020 13 447:51
 
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