The Socorro mockingbird is an endangered mockingbird endemic to Socorro Island in Mexico's Revillagigedo Islands. The specific epithet commemorates the American ornithologist Andrew Jackson Grayson.
Region
Revillagigedo Islands, eastern Pacific
Typical Environment
Occurs only on volcanic Socorro Island, using native shrublands, dry forests, and wooded ravines. It forages from the ground to low and mid-level vegetation, favoring areas with dense cover and fruiting shrubs. Today it is most frequent in mid- to higher-elevation habitats where cover is thicker and predator pressure is lower. Historic range likely included more of the island’s lowlands before invasive mammals altered vegetation.
Altitude Range
Sea level to 1050 m
Climate Zone
Subtropical
Ease of Keeping
Beginner friendly: 1/5
The Socorro mockingbird is a critically endangered island endemic restricted to Socorro Island in Mexico’s Revillagigedo Archipelago. Its specific epithet honors American ornithologist Andrew Jackson Grayson. The species has declined severely due to invasive predators (especially feral cats) and habitat alteration, and conservation actions focus on predator control and habitat restoration.
Temperament
inquisitive yet territorial
Flight Pattern
short rapid wingbeats with low, direct flights between perches
Social Behavior
Usually seen singly or in pairs, defending territories year-round. Pairs build cup nests in dense shrubs or small trees and share parental duties. Courtship includes song and display chases through thick cover.
Migratory Pattern
Resident
Song Description
A rich, varied series of phrases delivered from prominent perches, with some mimicry of other island sounds. Calls include sharp scolds and chattering notes when alarmed.
Plumage
Brownish-gray upperparts with a slightly warmer tone on the wings and long tail; underparts pale with dusky streaking on the breast and flanks.
Diet
Takes insects and other small invertebrates gleaned from foliage, bark, and the ground. Also eats fruits and berries from native shrubs and trees, especially when invertebrates are less abundant. Will probe leaf litter and inspect crevices with its long bill, occasionally pursuing prey on foot.
Preferred Environment
Forages along shrub edges, in wooded ravines, and around fruiting vegetation. Uses volcanic rocks, fallen branches, and dense bushes as cover while searching for food.
