Brown-backed Mockingbird

The brown-backed mockingbird (Mimus dorsalis) is a species of bird in the family Mimidae. It is found in Argentina and Bolivia. == Taxonomy and systematics == The brown-backed mockingbird is a sister species to the white-banded mockingbird (Mimus triurus). It is monotypic. == Description == The brown-backed mockingbird is 21 to 25.5 cm (8.3 to 10.0 in) long and weighs between 52 and 65 g (1.8 and 2.3 oz) with an average of 58.7 g (2.07 oz). The adult has a well-defined whitish supercilium, a black line through the eye, and dusky cheeks. Its crown and upperparts are chestnut brown that is brightest on the rump. The crown has darker streaks. Most of the tail is blackish but the outer three to four feathers are white. Its underside is whitish with a buff tinge to the chest, sides and flanks. The juvenile is similar with the addition of dusky spotting on its breast. == Distribution and habitat == Most of the brown-backed mockingbird's range is in western and southern Bolivia, from La Paz Department south. It also entends into northwestern Argentina as far south as Tucumán Province. The brown-backed mockingbird inhabits arid landscapes of brush, desert shrubs, and hedgerows, often…