This long-tailed little furnariid is common through much of the temperate parts of South America’s southern cone. They are acrobatic, small and have a peg shaped bill that does indeed remind one of the Paridae (chickadees, tits, titmice) and ecologically they do take this role. Often they are found in family groups, or small flocks, sometimes with other flocking species such as Tufted Tit-Tyrants (Anairetes parulus). Plain-mantled Tit-Spinetails make a bulky domed nest of soft materials which they hide in a covered area, including tree cavities. In parts of Santiago, Chile they commonly create their nests within city light fixtures. This tit-spinetail shows quite a bit of geographic variation, and at least two species may be involved. In particular, the large and buffy berlepschi of the Altiplano is not only rather different in plumage, but vocally it stands apart.