both Trinidad and Tobago. It has also occurred as a vagrant in Uruguay. Subspecies A. n. iridescens is found in extreme southwestern Colombia, western Ecuador, and extreme northwestern Peru. The black-throated mango inhabits a variety of landscapes in the lowland tropics, most of them semi-open to open. These include gallery forest, shade coffee and cacao plantations, the edges of dense forest, and parks and gardens in populated areas. In general it is a bird of the lowlands, but reaches in Venezuela, in Colombia, and in eastern Brazil. Behavior Movement The black-throated mango is generally sedentary though some populations apparently make some movements seasonally or in response to the availability of flowering plants. The eastern Brazilian population is reported to make a long-distance migration. Details of the various movements have not been defined. Feeding The black-throated mango feeds on nectar, favoring the flowers of tall trees. Those of genera Erythrina, Eucalyptus, Mabea, Spirotheca, Tabebuia, and Spathodea are known sources. It also feeds on vines and shrubs of many genera, both native and introduced. Males defend feeding territories in trees but not as vigorously as some other hummingbirds. In addition to nectar, the species feeds on insects by hawking, mostly from a high perch but also much less frequently low down such as along roads or streams. It also gleans insects from foliage but less commonly than taking them by hawking. Breeding The black-throated mango's breeding season varies across its range. It nests from December to July in Trinidad, between January and April in coastal Venezuela, in July and August in Amazonian Brazil and November to February in other parts of that country, and perhaps year-round in Colombia. The female builds a cup nest of soft plant material such as seed down and rootlets with lichen on the outside, all bound together with spider silk. Most are placed like a saddle in an exposed place such as leafless parts of trees and human-made substrates such as utility wires. The clutch size is two eggs. The incubation period is 16 to 18 days, fledging occurs 20 to 26 days after hatch, and young are independent about two weeks after fledging. The female alone incubates the eggs and provisions the nestlings. A black-throated mango nest in Cuyabeno Faunistic Reserve, Ecuador was in a tree inhabited by Pseudomyrmex stinging ants. It is likely that the ants would deter predators, but it is not known whether