title: Optic flow-field variables trigger landing in hawk but not in pigeons.
authors.affiliation: Department of Psychology, University of Nottingham, UK.
authors.forename: M N
authors.initials: MN
authors.lastname: Davies
authors.forename: P R
authors.initials: PR
authors.lastname: Green
mesh_terms: D000818:Animals; D001717:Birds / Q000502:physiology*; D010856:Columbidae / Q000502:physiology*; D005426:Flight, Animal; D006614:Hindlimb / Q000502:physiology; D012160:Retina / Q000502:physiology*; D013028:Space Perception; D013045:Species Specificity; D013997:Time Factors