Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 0 211:28
2008 175 460:04
2009 108 365:00
2010 23 637:04
2011 477 348:08
2012 1 333:29
2013 83 281:38
2014 0 156:47
2015 181 117:20
2016 55 142:02
2017 0 179:22
2018 21 222:16
2019 0 98:41
 
Partners