Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 10:00
2001 232 594:30
2002 0 0:00
2005 67 77:15
2006 15 32:05
2007 58 88:45
2008 47 100:00
2009 2 52:20
2010 10 48:05
2011 109 88:24
2012 3 36:20
2013 2 37:30
2014 0 30:40
2015 3 44:40
2016 6 171:15
2017 16 179:29
2018 51 380:50
2019 26 344:15
 
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