Example 2
IMG 4484

Carduelis flammea

(Redpoll, Sizerin flammé, Birkenzeisig, Pardillo sizerin)

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10 Primaries of the left wing

 

Feather P1 P2 P3 P4 P5 P6 P7 P8 P9 P10
Length (mm) 48 50 52 53 57 64 66 65 62 18