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To distinguish the Silvery-fronted Tapaculo from the Orange-billed Nightingale-Thrush, focus on their size and bill color. The Silvery-fronted Tapaculo is generally darker and lacks the distinctive orange bill of the Nightingale-Thrush.

Bill color: Look for the orange bill of the Nightingale-Thrush. Plumage: The Tapaculo is darker with a less pronounced supercilium. Behavior: Note the Nightingale-Thrush's ground-hopping and low-perch singing.

The Silvery-fronted Tapaculo is slightly larger than the nominate form but generally smaller and more compact than the Orange-billed Nightingale-Thrush.

The Silvery-fronted Tapaculo is darker overall with a less marked supercilium, whereas the Orange-billed Nightingale-Thrush has a more varied plumage with a distinctive orange bill.

The Orange-billed Nightingale-Thrush is often seen hopping on the ground or singing from a low perch, while there is no specific behavior noted for the Silvery-fronted Tapaculo.

The Orange-billed Nightingale-Thrush has a less musical, drier song compared to other thrushes, with a nasal, upslurred call note. There are no specific vocalization notes for the Silvery-fronted Tapaculo.