Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 10:00
2001 130 594:30
2002 0 0:00
2005 80 77:15
2006 27 32:05
2007 362 88:45
2008 177 100:00
2009 0 52:20
2010 24 48:05
2011 358 88:24
2012 0 36:20
2013 32 37:30
2014 11 30:40
2015 180 44:40
2016 112 171:15
2017 242 179:29
2018 473 380:50
2019 1450 344:15
 
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