Example 3-3
IMG 0466

Merops apiaster

(Bee-eater, Guèpier d'Europe, Bienenfresser, Abejaruco común)

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7 Secondaries and 3 tertials of the right wing

 

Feather S3 S4 S5 S6 S7 S8 S9 S10 S11 S12
Length (mm) 69 68 67 66 65 64 64 64 58 47

For natural size set the magnification of your browser to 63 %. [Explanation]