Uniform Treehunter
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The uniform treehunter (''Thripadectes ignobilis'') 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
Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...
and
Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...
.


Taxonomy and systematics

The uniform treehunter is a
sister species In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and ...
of the
flammulated treehunter The flammulated treehunter (''Thripadectes flammulatus'') is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Colombia, Ecuador, Peru, and Venezuela. Taxonomy and systematics The flammulated t ...
(''T. flammulatus'') and
Peruvian treehunter The Peruvian treehunter (''Thripadectes scrutator'') is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Bolivia and Peru. It is also called the rufous-backed treehunterClements, J. F., T. S. Sc ...
(''T. scrutator'').Derryberry, E. P., S. Claramunt, G. Derryberry, R. T. Chesser, J. Cracraft, A. Aleixo, J. Pérez-Emán, J. V. Remsen, Jr., and R. T. Brumfield. (2011). Lineage diversification and morphological evolution in a large-scale continental radiation: the Neotropical ovenbirds and woodcreepers (Aves: Furnariidae). Evolution 65(10):2973–2986. https://doi.org/10.1111/j.1558-5646.2011.01374.x It is
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...
.


Description

The uniform treehunter is long and weighs between . It is the smallest, darkest, and shortest-billed member of its genus. The sexes have the same plumage. Adults have a vague narrow
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 ...
and wide eyering that are dull tawny-rufous, blackish brown lores grizzled with pale buff, blackish ear
coverts A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts The ear coverts are small feathers behind t ...
with narrow ochraceous-buff streaks, and a dark brown malar area with lighter blurry streaks and spots. Their crown is dark brown with vague pale spots on the forehead. Their back and rump are slightly paler and redder than the crown. Their wings and tail are rich dark reddish brown. Their throat is dull dark buff with wide blurry darker streaks, their breast and belly rich dark brown with narrow buff streaks that disappear to the rear, their flanks dark reddish brown, and their undertail coverts a paler reddish brown. Their iris is dark brown, their
maxilla In vertebrates, the maxilla (: maxillae ) is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. The two maxil ...
dark brownish, their
mandible In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone i ...
blackish with a reddish horn base to dusky yellow with a dark tip, and their legs and feet greenish brown.Remsen, Jr., J. V. (2020). Uniform Treehunter (''Thripadectes ignobilis''), 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.unitre1.01 retrieved September 5, 2023


Distribution and habitat

The uniform treehunter is found on the Pacific slope of the Andes from Colombia's Western Andes in
Chocó Department Chocó Department () is a department of the Pacific region of Colombia known for hosting the largest Afro-Colombian population in the nation, and a large population of Amerindian and mixed African-Amerindian Colombians. It is in the west of the ...
south through Ecuador to
El Oro Province El Oro (; ''oro'' = gold) is the southernmost of Ecuador's coastal provinces. It was named for its historically important gold production. Today it is one of the world's major exporters of bananas. The capital is Machala. History The area was s ...
. It inhabits montane
evergreen forest An evergreen forest is a forest made up of evergreen trees. They occur across a wide range of climatic zones, and include trees such as conifers and holly in cold climates, eucalyptus, live oak, acacias, magnolia, and banksia in more temperate zo ...
and also
secondary forest A secondary forest (or second-growth forest) is a forest or woodland area which has regenerated through largely natural processes after human-caused Disturbance (ecology), disturbances, such as Logging, timber harvest or agriculture clearing, or ...
in the subtropical and foothill zones. In elevation it mostly ranges between in Colombia and between in Ecuador. In both countries it occurs locally down to and in Ecuador locally up to .


Behavior


Movement

The uniform treehunter is a year-round resident throughout its range.


Feeding

The uniform treehunter feeds on
arthropod Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metam ...
s. It usually forages singly and often in
mixed-species feeding flock A mixed-species feeding flock, also termed a mixed-species foraging flock, mixed hunting party or informally bird wave, is a flock of usually insectivorous birds of different species that join each other and move together while foraging. These ar ...
s. It mostly forages in dense undergrowth but regularly will do so up to the forest's mid-story and above. It forages along branches to glean prey from them, debris, and dead leaves.


Breeding

The uniform treehunter's nesting season has not been fully described but spans at least June to September. It is thought to be monogamous. It nests in a tunnel in an earthen bank. Nothing else is known about its breeding biology.


Vocalization

The uniform treehunter's song is a rather high-pitched "series of 6-8 sharp 'kik' or 'kyip' notes".


Status

The
IUCN The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status ...
has assessed the uniform treehunter as being of Least Concern. It has a restricted range and an unknown population size that is believed to be stable. No immediate threats have been identified. It is considered uncommon to locally fairly common and occurs in two protected areas in Colombia.


References

{{Taxonbar, from=Q1261027 uniform treehunter Birds of the Colombian Andes Birds of the Ecuadorian Andes uniform treehunter uniform treehunter uniform treehunter Taxonomy articles created by Polbot