Complex sentence: Territories are established and maintained through hooting, with highest activity before egg-laying and second peak in autumn when juveniles disperse, and can range from an average of in the Yukon Territory to an average of in Wyoming.
Split into simpler sentences: Territories are established and maintained through hooting, with highest activity before egg-laying and second peak in autumn when juveniles disperse. Territories can range from an average of in the Yukon Territory to an average of in Wyoming.