The Cuban Green Woodpecker (Teretistris fernandinae) and the Yellow-headed Warbler (Teretistris viridescens) make up this family, both endemic to Cuba. They are small, arboreal birds with relatively long tails and thin bills. Their plumage is primarily greenish-yellow, with some black markings. These birds inhabit forests and woodlands, foraging for insects among foliage and bark.