Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 11 23:40
2007 193 71:05
2008 348 94:25
2009 103 91:45
2010 554 159:55
2011 628 208:42
2012 386 196:45
2013 361 239:26
2014 1418 218:15
2015 156 145:35
2016 439 217:52
2017 317 191:09
2018 269 243:43
2019 341 191:56
2020 153 108:23
2021 232 156:10
2022 5 25:42
 
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