title: Birds see ultraviolet light.
mesh_terms: D000818:Animals; D001717:Birds / Q000502:physiology*; D003118:Color Perception / Q000502:physiology; D009799:Ocular Physiological Phenomena; D009821:Oils; D014466:Ultraviolet Rays; D014796:Visual Perception / Q000502:physiology*
chemical_list: D009821:Oils