Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 2 39:30
1999 0 10:00
2001 1555 594:30
2002 0 0:00
2005 530 77:15
2006 55 32:05
2007 229 88:45
2008 275 100:00
2009 51 52:20
2010 258 48:05
2011 243 88:24
2012 1 36:20
2013 126 37:30
2014 102 30:40
2015 343 44:40
2016 174 171:15
2017 748 179:29
2018 1916 380:50
2019 1237 344:15
2020 2 203:46
 
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