Head-bobbing during Walking , Running and Flying : Relative Motion Perception in the Pigeon

Abstract

Measurements of head and body velocity were made by single-frame analysis of films showing pigeons walking, running, flying towards a perch and taking off from the ground. A rhythm of head velocity was always observed in the first three situations, but never in the last. During walking, this head-bobbing rhythm resulted in stabilization of the head relative… (More)

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