Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 19:00
2001 237 594:30
2002 0 0:00
2005 20 77:15
2006 16 32:05
2007 44 88:45
2008 43 100:00
2009 10 52:20
2010 13 48:05
2011 26 88:24
2012 0 36:20
2013 85 37:30
2014 26 30:40
2015 25 44:40
2016 41 163:00
2017 169 179:29
2018 167 380:50
2019 189 344:15
2020 420 447:51
 
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