The blue-black grassquit is a small Neotropical bird in the tanager family, Thraupidae. It is the only member of the genus Volatinia. It is a common and widespread bird that breeds from southern Mexico through Central America, and South America as far as northern Chile, Argentina, and Paraguay, and in Trinidad and Tobago. A male was also observed in Graham County, Arizona, on July 15 and July 17, 2023.
Region
Central and South America (Neotropics)
Typical Environment
Occurs from southern Mexico through Central America and across much of South America to northern Chile, Argentina, Paraguay, and on Trinidad and Tobago. It favors open and semi-open habitats including grasslands, agricultural fields, savannas, forest edges, and second growth. Often found near human-modified landscapes with abundant seed-producing weeds. It is common in both lowlands and foothills and can persist in fragmented habitats.
Altitude Range
Sea level to 2000 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
This species is the sole member of the genus Volatinia and is widespread throughout the Neotropics. Males are famous for their jumping display, repeatedly leaping from a perch while singing, which has earned them nicknames like 'johnny jump-up.' They readily colonize disturbed habitats, roadsides, and weedy fields, and often benefit from low to moderate land clearing. Despite their small size, they are bold and conspicuous during the breeding season.
Temperament
social and active
Flight Pattern
short rapid wingbeats
Social Behavior
During the breeding season males hold small territories and perform repeated vertical hops from exposed perches. Courtship occurs in loose, exploded leks, and females build a small cup nest low in grasses or shrubs. Outside breeding, they may form small flocks that forage together in open areas.
Migratory Pattern
Partial migrant
Song Description
Song is a rapid series of thin, high-pitched notes delivered during the characteristic jumping display. Calls include sharp chips and buzzes used to maintain contact and signal alarm.
