Example 2
IMG 4804

Troglodytes troglodytes

(Wren, Troglodyte mignon, Zaunkönig, Chochín)

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10 Primaries of the left wing

 

Feather P1 P2 P3 P4 P5 P6 P7 P8 P9 P10
Length (mm) 41 41 42 42 43 42 42 40 35 20

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