Graph

Country
Migration site
Species
Period
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
2006 155 61:32
2007 2000 211:28
2008 2424 460:04
2009 8266 365:00
2010 10799 637:04
2011 5863 348:08
2012 6552 333:29
2013 1778 281:38
2014 1598 156:47
2015 558 117:20
2016 2681 142:02
2017 807 179:22
2018 2429 222:16
2019 16 98:41
 
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