Example 3
IMG 4480

Carduelis flammea

(Redpoll, Sizerin flammé, Birkenzeisig, Pardillo sizerin)

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12 Tail-feathers

 

Feather T6 T5 T4 T3 T2 T1 T1 T2 T3 T4 T5 T6
Length (mm) 60 60 58 56 55 51 51 54 57 59 60 60