Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 0 61:32
2007 0 211:28
2008 0 460:04
2009 2044 365:00
2010 1487 637:04
2011 774 348:08
2012 745 333:29
2013 665 281:38
2014 10 156:47
2015 86 117:20
2016 423 142:02
2017 138 179:22
2018 95 222:16
2019 20 98:41
 
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