Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 19:00
2001 241 594:30
2002 0 0:00
2005 22 77:15
2006 0 32:05
2007 5 88:45
2008 15 100:00
2009 5 52:20
2010 7 48:05
2011 0 88:24
2012 2 36:20
2013 2 37:30
2014 2 30:40
2015 36 44:40
2016 19 163:00
2017 45 179:29
2018 52 380:50
2019 304 344:15
2020 109 447:51
 
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