Example 2
IMG 7601

Erithacus rubecula

(Robin, Rougegorge familier, Rotkehlchen, Petirrojo común)

Back
Next
Previous

 

6 Secondaries of the right wing

 

Feather S1 S2 S3 S4 S5 S6
Length (mm) 53 52 51 50 46 44

For natural size set the magnification of your browser to 50 %. [Explanation]