The tyrant flycatchers (Tyrannidae) are a family of passerine birds which occur throughout North and South America. They are considered the largest family of birds known to exist in the world, with more than 400 species. They are the most diverse avian family in every country in the Americas, except for the United States and Canada. The members vary greatly in shape, patterns, size and colors. Some tyrant flycatchers may superficially resemble the Old World flycatchers, which they are named after but are not closely related to. They are members of suborder Tyranni (suboscines), which do not have the sophisticated vocal capabilities of most other songbirds.
The southern beardless tyrannulet is a small passerine bird in the tyrant flycatcher family. It breeds from Costa Rica through South America south to Paraguay, Bolivia, and Argentina.
The torrent tyrannulet is a small bird of the tyrant flycatcher family. It breeds from Costa Rica south to northern Bolivia and northwestern Venezuela.
The yellow tyrannulet is a very small passerine bird in the tyrant flycatcher family. It breeds from Nicaragua south to northeastern Argentina and southeastern Brazil. It is the only member of the genus Capsiempis, but its taxonomy is uncertain, and it has been allocated to at least three other genera in the past.
The Guatemalan tyrannulet or paltry tyrannulet, is a very small passerine bird in the tyrant flycatcher family. It occurs in southern Mexico, Guatemala, El Salvador and southern Belize.
The mistletoe tyrannulet is a very small bird, a passerine in family Tyrannidae, the tyrant flycatchers.
The northern beardless tyrannulet is a small passerine bird in the tyrant flycatcher family. It breeds from southeasternmost Arizona and Texas of the United States through Mexico and Central America to northwestern Costa Rica.
The yellow-headed brushfinch is a Near Threatened species of bird in the American sparrow family, Passerellidae. It is endemic to Colombia. The common name is a semi-literal translation of the scientific name, with Atlapetes referring to the brushfinch genus, and flaviceps meaning "yellow-headed".
The Amazonian Inezia or Amazonia Tyrannulet is a tiny tyrant-flycatcher bird that belongs to the Tyrannidae family found in riverine forests and scrub, including on islands, from southwest Venezuela and neighboring southeast Colombia south through the Amazonian region to northern Bolivia. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and heavily degraded former forest. Its prominent white supraloral and eye-ring, as well as its extremely "spotty" double wingbars, are what most easily set it apart. Olive-green to pale yellow makes up the majority of the rest of the feathers. With their tails held cocked, the species is frequently found in pairs, usually low to the ground. However, very little else about the biology and behavior of this tyrannulet has been documented to this point. The Amazonian Tyrannulet and the allopatric Pale-tipped Tyrannulet of northern South America were once thought to be conspecific, however vocalizations and, to a lesser extent, morphology clearly distinguish them from one another.
The rufous-winged tyrannulet is a species of bird in the family Tyrannidae. It is found in Ecuador and Peru. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist montane forests.
The buff-banded tyrannulet is a species of bird in the family Tyrannidae. It is found in Argentina, Bolivia, and Peru. Its natural habitat is subtropical or tropical moist montane forests.
The sulphur-bellied tyrannulet is a species of bird in the family Tyrannidae. It is found in the eastern Andes of Colombia, Ecuador and Peru. Its natural habitat is subtropical or tropical moist montane forests.
The rough-legged tyrannulet is a species of bird in the family Tyrannidae. It is found in Argentina, Bolivia, Brazil, and Paraguay. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest. The white-fronted tyrannulet was formerly considered a subspecies.
The sooty tyrannulet is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is small, usually weighing 9 grams with a length of 12 centimeters, and has gray or brownish-grey feathers with black tail feathers. It is found in Argentina, Brazil, and Uruguay; also southern Paraguay. A small extension of its range is in southeastern Bolivia.
The white-crested tyrannulet is a small species of bird in the family Tyrannidae. It is found in woodland and open habitats with scattered bushes and trees in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. It is closely related to the white-bellied tyrannulet, but unlike that species the belly of the white-crested tyrannulet is yellow. The recently described Straneck's tyrannulet is extremely similar to the white-crested tyrannulet and was for a long time confused with that species; the two are generally best separated by voice.
Straneck's tyrannulet, also known as the monte tyrannulet and grey-crowned tyrannulet, is a small species of bird in the family Tyrannidae. It is found in woodland and open habitats with scattered bushes and trees in south-central South America, but the details are still unclear. It breeds in Argentina, but may also breed in Bolivia. In addition to these countries, it has been recorded as a non-breeding visitor in Paraguay, and possibly Brazil and Uruguay. Visually it closely resembles the white-crested tyrannulet, but its voice is distinctive and its tail shorter. Considerable taxonomic confusion has surrounded this species, which for a period mistakenly was referred to by the scientific name Serpophaga griseiceps, a junior synonym of Serpophaga munda. Consequently, the Straneck's tyrannulet only received its scientific name in 2007 despite having been known since the early 1990s.
