Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 7 61:32
2007 1 211:28
2008 54 460:04
2009 205 365:00
2010 137 637:04
2011 255 348:08
2012 94 333:29
2013 337 281:38
2014 444 156:47
2015 33 117:20
2016 49 142:02
2017 130 179:22
2018 474 222:16
2019 110 251:51
2020 99 326:27
2021 5 147:04
 
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