About Certhidea fusca P.L.Sclater & Salvin, 1870
Introduction The grey warbler-finch (Certhidea fusca) is a species of bird, one of Darwin's finches in the tanager family Thraupidae. It was sometimes classified in the family Emberizidae, but more recent studies have confirmed that it belongs in the tanager family. It is endemic to the Galápagos Islands, Ecuador. This species is closely related to the green warbler-finch, and the two were formerly considered a single species. They are now recognized as separate because they differ in appearance, distribution, habitat, and song. The nominate subspecies comes from Pinta and Marchena, subspecies becki from Darwin and Wolf, mentalis from Genovesa, bifasciata from Santa Fé, cinerascens from Española, luteola from San Cristóbal, and ridgwayi from Floreana. Grey warbler-finches are found mostly in the shrubland and dry forest of smaller drier islands, and their coloration is well-suited to this habitat. Their natural habitats are subtropical or tropical dry forests, subtropical or tropical moist montane forests, and subtropical or tropical dry shrubland.
