IUCN threat status:

Endangered (EN)

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Biology

The pale-headed brush-finch is usually seen in pairs, which have been recorded breeding from anywhere between mid-January and late June, although no pairs have been observed successfully producing more than one clutch within a season. The chicks hatch after an incubation period of 14 to 15 days, and then proceed to be fed by their parents every 5 to 25 minutes, depending upon their age. Even after fledging, the young continue to depend upon their parents for food for at least a further four weeks (5). The pale-headed brush-finch is frequently a victim of nest parasitism by the shiny cowbird (Molothrus bonariensis), in which this species removes the existing eggs from the nest and replaces it with its own virtually identical eggs, to be incubated and raised by the pale-headed brush-finch (4). This bird usually forages in pairs, finding most of its food around 2 m above the ground (2). The diet consists of arthropods, fruit and a few seeds, with the arthropods almost invariably gleaned from twigs and small branches, while seeds are taken from the ground (7).

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Source: ARKive

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