Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 0 10:00
2001 129 594:30
2002 0 0:00
2005 412 77:15
2006 199 32:05
2007 132 88:45
2008 195 100:00
2009 153 52:20
2010 76 48:05
2011 118 88:24
2012 5 36:20
2013 123 37:30
2014 59 30:40
2015 207 44:40
2016 164 171:15
2017 232 179:29
2018 922 380:50
2019 1016 344:15
2020 5 213:31
 
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