Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 3 39:30
1999 10 10:00
2001 325 594:30
2002 0 0:00
2005 156 77:15
2006 3 32:05
2007 51 88:45
2008 272 100:00
2009 23 52:20
2010 39 48:05
2011 19 88:24
2012 70 36:20
2013 51 37:30
2014 37 30:40
2015 123 44:40
2016 13 171:15
2017 457 179:29
2018 509 380:50
2019 1135 344:15
 
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