Example 2
IMG 0379

Corvus monedula

(Jackdaw, Choucas des tours, Dohle, Grajilla común)

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9 Secondaries of the right wing

 

Feathers S1 S2 S3 S4 S5 S6 S7 S8 S9
Length (mm) 132 128 124 122 118 114 110 102 85

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