Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 1 61:32
2007 30 211:28
2008 218 460:04
2009 59 365:00
2010 440 637:04
2011 247 348:08
2012 78 333:29
2013 129 281:38
2014 77 156:47
2015 98 117:20
2016 99 142:02
2017 122 179:22
2018 24 222:16
2019 13 98:41
 
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