Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 1 61:32
2007 11 211:28
2008 290 460:04
2009 2 365:00
2010 62 637:04
2011 4 348:08
2012 758 333:29
2013 4 281:38
2014 9 156:47
2015 4 117:20
2016 0 142:02
2017 2 179:22
2018 0 222:16
2019 583 251:51
2020 4 326:27
2021 0 117:29
 
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