Olfaction and homing in pigeons. A problem of navigation or of motivation?
D000818:Animals; D010856:Columbidae / Q000502:physiology*; D006702:Homing Behavior; D009042:Motivation / Q000502:physiology*; D009832:Olfactory Nerve / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D012903:Smell / Q000502:physiology