Similar to Long-tailed bush warbler, but tail shorter and underparts grayish rather than deep brown.

Also similar to Benguet bush warbler, but has a more distinct pale eyebrow.

'"[3] This species was once conspecific with the Japanese bush warbler and differs vocally, through its smaler size, deeper rufous upper back, darker lores and grayer Presumed to feed on small invertebrates.

Birds in breeding condition with enlarged gonads collected in April.

It is typically found in the understory and low thickets in the forest strata.