Complex sentence: The rufous scrub-bird "(Atrichornis rufescens)" is a threatened bird on the TSC Act is of medium size (about 17 cm body size), ground-dwelling bird that relies on dense ground vegetation for nesting.
Split into simpler sentences: The rufous scrub-bird "(Atrichornis rufescens)" is a threatened bird on the TSC Act. This medium size (about 17 cm body size) ground-dwelling bird that relies on dense ground vegetation for nesting.