Сине-белый пересмешник Melanotis hypoleucus

Skulking and heard far more often than seen, this fairly large and ample-tailed songbird replaces Blue Mockingbird in highlands and foothills south of Isthmus of Tehuantepec. Favors thickets, dense scrubby woodlands, and forest understory. Behavior similar to Blue Mockingbird: skulking and difficult to see clearly. Plumage striking: denim-blue above with a black mask, white below. Varied songs and calls similar to Blue Mockingbird.