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Range DescriptionAnairetes alpinus occurs locally in the high Andes of Peru and Bolivia. Subspecies alpinus occurs in the cordilleras Central and Occidental (La Libertad [G. Engblom in litt. 2000], Ancash and Lima), Peru. Subspecies bolivianus occurs in the Cordillera Oriental (Apurmac and Cuzco), Peru, and the Cordillera Real (La Paz), Bolivia (Fjelds and Kessler 1996, Maynard and Waterton 1998, G. Servat in litt. 1999, Vogel and Hennessey 2002, I. Gomez in litt. 2003, 2007). Confirmation is required for a report near Laraos (Lima), Peru (G. Servat in litt. 1999). It is relatively common in the Runtacocha highland, Apurmac, and the Cordillera Vilcabamba, Cuzco (Fjelds and Kessler 1996), with the population at Abra Mlaga estimated as c.20-30 birds (Engblom et al. 2002). In Bolivia it is locally common at the north end of the Cordillera Real in the Cordillera Apolobamba, and the total Bolivian population was estimated at 150-300 birds in 2007 (I. Gomez in litt. 2003, 2007). The total population is perhaps in the mid- or upper hundreds, but estimates vary, and there have been several recent discoveries that have extended the known range of this species (G. Engblom in litt. 2000; Fjelds and Kessler 1996, Maynard and Waterton 1998, G. Servat in litt. 1999, Vogel and Hennessey 2002).