It is possible to confuse the Ash-breasted Sierra- Finch female with several other small birds, especially female Plain-colored & Band-tailed Seedeater. Band-tailed Seedeater has a band in the tail, sometimes only visible in flight. The dark bill also distinguishes the Ash-breasted Sierra-Finch from the Seedeaters stubbier and more pinkish bill. The female Plumbeous Sierra-Finch is somewhat more streaked and slightly lager (Pictures from Chiguata at 3000 m, 31.07.07).
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