title: The role of contact calls in the social behavior of the budgerigar (Melopsittacus undulatus).
authors.affiliation: Department of Psychology, University of Maryland, College Park 20742, USA.
authors.forename: S D
authors.initials: SD
authors.lastname: Shea
authors.forename: K J
authors.initials: KJ
authors.lastname: Heaton
authors.forename: J T
authors.initials: JT
authors.lastname: Heaton
authors.forename: W S
authors.initials: WS
authors.lastname: Hall
authors.forename: S E
authors.initials: SE
authors.lastname: Brauth
mesh_terms: D000374:Aggression; D000818:Animals; D003714:Denervation; D005260:Female; D008297:Male; D009409:Nerve Crush; D009769:Object Attachment; D010311:Parrots; D012726:Sexual Behavior, Animal; D012919:Social Behavior; D014132:Trachea / Q000294:innervation; D014828:Vocalization, Animal