Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 5 61:32
2007 7 211:28
2008 8 460:04
2009 11 365:00
2010 29 637:04
2011 11 348:08
2012 11 333:29
2013 19 281:38
2014 8 156:47
2015 0 117:20
2016 0 142:02
2017 0 179:22
2018 1 222:16
2019 3 251:51
2020 5 326:27
2021 0 117:29
 
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