title: Notes and double knocks from Arkansas.
authors.forename: Russell A
authors.initials: RA
authors.lastname: Charif
authors.forename: Kathryn A
authors.initials: KA
authors.lastname: Cortopassi
authors.forename: Harold K
authors.initials: HK
authors.lastname: Figueroa
authors.forename: John W
authors.initials: JW
authors.lastname: Fitzpatrick
authors.forename: Kurt M
authors.initials: KM
authors.lastname: Fristrup
authors.forename: Martjan
authors.initials: M
authors.lastname: Lammertink
authors.forename: M David
authors.initials: MD
authors.lastname: Luneau
authors.forename: Michael E
authors.initials: ME
authors.lastname: Powers
authors.forename: Kenneth V
authors.initials: KV
authors.lastname: Rosenberg
mesh_terms: D000819:Animal Communication; D000818:Animals; D001131:Arkansas; D001296:Audiovisual Aids; D001717:Birds / Q000502:physiology*; D003308:Copying Processes; D014828:Vocalization, Animal