Dark-Sided Thrush 
Other names: lesser brown thrush, the long-billed ground-thrush, and the dark-sided ground-thrush
(Zoothera marginata)
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The dark-sided thrush (Zoothera marginata) is a species of bird in the thrush family Turdidae.

Compare:
- Dark-sided thrush (Zoothera marginata): blotched breast and belly with white stain on a dark brown background. 
- Japanese thrush (Turdus cardis): female: blotched breast and belly with dark stain on a white background. 

Turdidae, Turdus is the Latin word for a "thrush".
The genus name Zoothera combines the Ancient Greek zōon meaning "animal" with -thēra meaning "hunter".
marginata: Latin word meaning "border" or "margin".