Green-tailed Trainbearer (Lesbia nuna subsp. pallidiventris) Species sexually dimorphic, female. Cordillera Blancas, Huascarn National Park, northeast of Yungay, Ancash, Per. Above the second Laguna Llanganuco at Yuraq Corral. At the edge of mountain-slope and the overgrazed valley floor (puna grassland) at ca. 3,863 m (12,674 ft).