Complex sentence: These ground rollers feed primarily on invertebrates, including ants, beetles, butterflies, and worms, which it finds by searching through deep leaf litter for its prey or by waiting attentively for an opportunity.
Split into simpler sentences: These ground rollers feed primarily on invertebrates, including ants, beetles, butterflies, and worms. The bird searches through deep leaf litter for its prey or waits attentively for an opportunity.