Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 1 19:00
2001 163 594:30
2002 0 0:00
2005 49 77:15
2006 1 32:05
2007 1 88:45
2008 19 100:00
2009 3 52:20
2010 15 48:05
2011 0 88:24
2012 4 36:20
2013 94 37:30
2014 15 30:40
2015 8 44:40
2016 65 171:15
2017 32 179:29
2018 47 380:50
2019 266 344:15
2020 42 364:01
 
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