Black-headed brushfinch
Introduction The '''black-headed brushfinch''' ('''''Arremon atricapillus''''') is a species of bird in the family Passerellidae. It lives in the undergrowth of humid forest, especially near edges, at altitudes of  in Colombia and Panama.
Taxonomy Until recently, the black-headed brushfinch was placed in the genus ''Buarremon''.The black-headed brushfinch was often treated as a subspecies of the stripe-headed brushfinch (''A. torquatus''), but the distributions of the two approach each other closely in Colombia with no evidence of intergradation. In addition, the Costa Rican brushfinch, ''A. costaricensis'' has often been treated as a subspecies of the stripe-headed brushfinch, or a subspecies of the black-headed brushfinch, but based on ecology, morphology, song, and molecular work, it has recently been suggested that ''A. costaricensis'' is worthy of treatment as a species. In that case, the black-headed brushfinch would only include the subspecies ''tacarcunae'', and be restricted to Colombia and eastern Panama.
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