| Straneck's Tyrannulet | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Tyrannidae |
| Genus: | Serpophaga |
| Species: | S. griseicapilla |
| Binomial name | |
| Serpophaga griseicapilla Straneck, 2007 |
|
The Straneck's Tyrannulet (Serpophaga griseicapilla), also known as the Monte Tyrannulet and Grey-crowned Tyrannulet, is a small species of bird in the Tyrannidae family. It is found in woodland and open habitats with scatted 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 (it is unclear if it is a regular non-breeding visitor or only an accidental visitor to the last two countries). Visually it closely resembles the White-crested Tyrannulet, but its voice is distinctive. 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.