Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 19:00
2001 377 594:30
2002 0 0:00
2005 60 77:15
2006 0 32:05
2007 58 88:45
2008 113 100:00
2009 4 52:20
2010 28 48:05
2011 2 88:24
2012 23 36:20
2013 44 37:30
2014 1 30:40
2015 51 44:40
2016 9 163:00
2017 113 179:29
2018 141 380:50
2019 359 344:15
2020 162 447:51
 
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