Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 10 61:32
2007 33 211:28
2008 74 460:04
2009 51 365:00
2010 190 637:04
2011 172 348:08
2012 143 333:29
2013 72 281:38
2014 47 156:47
2015 30 117:20
2016 9 142:02
2017 11 179:22
2018 38 222:16
2019 60 246:33
2020 17 165:57
 
Partners