Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 3 61:32
2007 1092 211:28
2008 708 460:04
2009 503 365:00
2010 1195 637:04
2011 229 348:08
2012 731 333:29
2013 233 281:38
2014 313 156:47
2015 31 117:20
2016 46 142:02
2017 443 179:22
2018 561 222:16
2019 32 98:41
 
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