... are physiologically capable of controlling the sound-generating syringeal membranes in the ring dove ( Streptopelia risoria ) syrinx. We establish the role of the tracheolateralis muscle and propose a new function for the sternotrachealis muscle. The tracheolateralis and sternotrachealis muscles have an antagonistic...

... 9516, 2300 RA Leiden, The Netherlands 23 8 2004 © The Company of Biologists Limited 2004 2004 tracheal resonance Helmholtz resonator birdsong harmonic suppression source-filter theory Streptopelia risoria The spectral content of vocalizations used in acoustic...

... but much less so in non-songbirds, the songs of which are often regarded as relatively simple. We examined mechanisms of frequency and amplitude modulation of phonation in ring doves Streptopelia risoria ,which are non-songbirds. Spontaneous coo vocalizations were recorded together with concurrent pressure...

... ) and transitions between gaits in cockatiels ( Nymphicus hollandicus ) and ringed turtle-doves ( Streptopelia risoria )trained to fly in a recently built, variable-speed wind tunnel. Gait use was investigated via a combination of three-dimensional kinematics and quasi-steady aerodynamic modeling of bound...