Complex sentence: The song, up to a minute long, is soft for a shrike, with chattering sounds interspersed with rich warbles, and resembles the songs of "Hippolais" species, particularly the olive-tree warbler.
Split into simpler sentences: The song, up to a minute long, is soft for a shrike, with chattering sounds interspersed with rich warbles. It resembles the songs of "Hippolais" species, particularly the olive-tree warbler.