Common resident on San Cristobal Island, breeding from October to April nesting in trees or cacti. Range does not overlap with any other species of mockingbird.
Similar in size and structure to Galapagos Mockingbird but intermediate in plumage between that species and Hood Mockingbird. Shows a narrow white collar, prominent streaking on flanks and sides of breast, which often extends to form a diffuse breast-band, and a distinct dark malar stripe. Iris greenish.
Loud and melodious but variable.