Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 3 211:28
2008 61 460:04
2009 9 365:00
2010 24 637:04
2011 60 348:08
2012 15 333:29
2013 14 281:38
2014 9 156:47
2015 12 117:20
2016 60 142:02
2017 45 179:22
2018 124 222:16
2019 20 251:51
2020 54 326:27
2021 56 172:06
2022 23 55:14
 
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