Example 21
IMG 2949

Asio otus

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

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7 Secondaries (S13 - S7) of the left wing

 

Feather S13 S12 S11 S10 S9 S8 S7
Length (mm) 112 122 125 126 130 132 133

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