Labels:envelope | fence | microwave | person | pole | sky | windowpane OCR: SOCIAL INTERACTION ER RT Traveling raptors may pass over the territory of another without provoking an encounter. defended territory has an invisible ceiling. raptor may pass over the territory of another without confrontation as long as perceived to traveling towards destination outside of the territory. bid that is perceived as entering another's territory will be driven away contents ontions 4inb bookmark last menu options quit