title: Further efforts at training pigeons to discriminate changes in the geomagnetic field.
authors: Békésy Laboratory of Neurobiology, University of Hawaii, Honolulu 96822.
authors: P A
authors: PA
authors: Couvillon
authors: A M
authors: AM
authors: Asam
authors: M E
authors: ME
authors: Bitterman
mesh_terms: D000818:Animals; D010856:Columbidae / Q000502:physiology*; D003214:Conditioning, Classical; D004193:Discrimination Learning; D008280:Magnetics; D012201:Reward