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The Black-faced Antthrush and White-breasted Wood-Wren can be distinguished primarily by their plumage and structure. The Black-faced Antthrush has a more uniform appearance with a distinctive black face, while the White-breasted Wood-Wren features a white breast and a prominent whitish supercilium. These species are not closely related, with the antthrush being a ground-dwelling bird and the wood-wren more arboreal.

Look for the black face of the Black-faced Antthrush and the white breast and whitish supercilium of the White-breasted Wood-Wren. Observe behavior: antthrushes are ground-dwellers, whereas wood-wrens are more arboreal.

The Black-faced Antthrush has a black face and a generally uniform coloration, whereas the White-breasted Wood-Wren displays warm brown upperparts with darker barring over the wings and tail, a whitish supercilium, and predominantly white underparts that become rufous or buff towards the rear.

The Black-faced Antthrush is typically found on the forest floor, often walking or running, while the White-breasted Wood-Wren is more arboreal, frequently seen hopping through the undergrowth.