title: [Simultaneous differentiation of geometric forms by birds].
mesh_terms: D000818:Animals; D002645:Chickens / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology; D005556:Form Perception / Q000502:physiology*
vernacular_title: Odnochasne dyferentsiiuvannia heometrychnykh form u ptakhiv