Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 4 211:28
2008 140 460:04
2009 98 365:00
2010 233 637:04
2011 23 348:08
2012 20 333:29
2013 104 281:38
2014 0 156:47
2015 11 117:20
2016 68 142:02
2017 4 179:22
2018 35 222:16
2019 0 98:41
 
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