Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1997 0 39:30
1999 7 19:00
2001 92 594:30
2002 0 0:00
2005 30 77:15
2006 1 32:05
2007 4 88:45
2008 5 100:00
2009 0 52:20
2010 1 48:05
2011 0 88:24
2012 0 36:20
2013 6 37:30
2014 14 30:40
2015 15 44:40
2016 3 163:00
2017 39 179:29
2018 19 380:50
2019 42 344:15
2020 37 447:51
2021 48 462:39
 
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