Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
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Year Totals Observation hours
2008 1 360:30
2009 0 450:00
2010 3 500:00
2011 10 590:05
2012 3 846:25
2013 11 669:05
2014 19 653:09
2015 10 628:23
2016 14 664:24
2017 15 653:41
2018 38 697:15
2019 41 1240:41
2020 84 638:33
2021 28 705:25
2022 166 1267:22
 
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