Example 20
IMG 2941

Asio otus

(Long-eared Owl, Hibou moyen-duc, Waldohreule, Bho chico)

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7 Secondaries (S7 - S13) of the right wing

 

Feather S7 S8 S9 S10 S11 S12 S13
Length (mm) 136 133 130 125 124 122 110

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