Chestnut-breasted Coronet (Boissonneaua matthewsii) Sexes similar. This bellicose beauty let its aggression get the best of it (note the broken tip of its upper mandible). Casa Simpson, north of Valladolid, Zamora-Chinchipe Province, Ecuador. Lodge grounds of Casa Simpson, secondary cloud forest (wet temperate montane forest) with cultivars, adjacent to Tapichalaca Reserve at ca. 1,800 m (5,905 ft) elevation.