The streak-fronted thornbird (''Phacellodomus striaticeps'') is a species of
bird
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...
in the Furnariinae subfamily of the ovenbird
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Furnariidae. It is found in Argentina, Bolivia, and Peru.
Taxonomy and systematics
The streak-fronted thornbird has two subspecies, the
nominate
Nomination is part of the process of selecting a candidate for either election to a public office, or the bestowing of an honor or award. A collection of nominees narrowed from the full list of candidates is a short list.
Political office
In th ...
''P. s. striaticeps'' (
d'Orbigny
Alcide Charles Victor Marie Dessalines d'Orbigny (6 September 1802 – 30 June 1857) was a French naturalist who made major contributions in many areas, including zoology (including malacology), palaeontology, geology, archaeology and anthropol ...
&
Lafresnaye, 1838) and ''P. s. griseipectus'' (
Chapman, 1919).
[ However, some authors consider the second to be a tentative rather than confirmed separate taxon, and note that some other populations differ more from the nominate than it does.][Remsen, Jr., J. V. (2020). Streak-fronted Thornbird (''Phacellodomus striaticeps''), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.stftho1.01 retrieved September 20, 2023]
Description
The streak-fronted thornbird is long and weighs about . It is a rather small and slim thornbird. The sexes have the same plumage. Adults of the nominate subspecies have an indistinct gray-buff supercilium
The supercilium is a plumage feature found on the heads of some bird species. It is a stripe which runs from the base of the bird's beak above its eye, finishing somewhere towards the rear of the bird's head.Dunn and Alderfer (2006), p. 10 Also k ...
, blackish lores with some gray-buff, and a dark brown stripe behind the eye on an otherwise rufous-washed brownish face. Their forehead ("front") is a mix of blackish and reddish with brown streaks. Their crown is paler, browner, and unstreaked. Their upperparts are mostly rich dark brown with a slightly paler rump. Their wings are mostly dark brown with some rufescence,