Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
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Year Totals Observation hours
2013 2 11:30
2014 14 124:30
2015 3 92:15
2016 14 138:50
2017 8 208:17
2018 6 142:25
2019 10 131:50
2020 6 173:45
2021 5 177:15
2022 2 141:20
2023 3 89:10
 
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