Habitat: The Blue-black grassquit will be found in grassy areas, clearings and gardens and in all types of semiopen aeas and agricultural fields. Distribution: This species has been reported from Mexico to northern Chile and central Argentina. Natural History Notes: This grassquuit species is probably the most observed bird in open areas, in the lowlands. The male's call is fairly loud and is composed of a repeticion of "dzee-ew". As the male calls, it jumps with a foot in the air and fall back on a tree branch. Conservation status according to IUCN 2008 Red list: Least Concern (LC). It is a resident species. Characteristics: The total length of this species varies between 4 inches and 4.5 inches (measured from tip of bill to end of tail). The male is characterized by a fine and pointed bill and a blue-black plumage. The female has a brown coloration on the above and a beige coloration on the part below.