The Micronesian starling is a species of starling in the family Sturnidae. It is found in Micronesia, from the Northern Mariana Islands to Palau and all the way into eastern Micronesia. Its natural habitats are subtropical or tropical dry forest and subtropical or tropical moist lowland forest. It is the only native frugivore existing on Guam.
Region
Micronesia (western Pacific)
Typical Environment
Occurs from the Northern Mariana Islands and Guam through Palau and the Caroline and Marshall Islands. It inhabits subtropical and tropical dry and moist lowland forests, coastal strand vegetation, limestone and volcanic forest, and secondary growth. The species readily uses agroforestry areas, plantations, village edges, and urban parks. It forages from the canopy to the ground and frequently perches on exposed branches, wires, and rooftops. Nesting is typically in tree cavities, rock fissures, coastal cliffs, and human structures.
Altitude Range
Sea level to 800 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 2/5
This glossy, dark starling is the only native frugivore that still persists on Guam, where it plays an important role in seed dispersal. It adapts well to human-modified landscapes and often nests in natural cavities as well as in buildings and cliff crevices. Populations on some islands have been affected by invasive predators such as the brown tree snake on Guam.
Temperament
social and active
Flight Pattern
strong direct flight with rapid wingbeats
Social Behavior
Often seen in pairs or small flocks and forms larger communal roosts outside the breeding season. Territorial around nest sites, which are placed in cavities in trees, cliffs, or buildings. Both parents participate in feeding the young.
Migratory Pattern
Resident
Song Description
A varied series of whistles, chatters, and metallic notes delivered from exposed perches. Calls can be loud and scolding, especially near nests or when foraging in groups.
