Variegated Yellow Roller In Song

Variegated Yellow Roller In Song
Variegated Yellow Roller In Song
The almost closed beak is typical of the roller in full song. This characteristic, plus the much prized low pitched song tours such as the Hollow Roll, Bass, and Koller serve to distinguish the roller canary. Tone quality is just as important as range. There is some possiblility that the use of rape seed is at least partly responsible for the lower pitch of their most valued tours

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