Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 8 211:28
2008 295 460:04
2009 260 365:00
2010 515 637:04
2011 487 348:08
2012 1127 333:29
2013 510 281:38
2014 66 156:47
2015 903 117:20
2016 97 142:02
2017 304 179:22
2018 385 222:16
2019 65 106:24
 
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