{{Short description|Species of bird}} {{Use American English|date=November 2025}}
{{Speciesbox | name = One-colored becard | image = One-colored Becard m - South Ecuador S4E8722 (16730610578).jpg | image_caption = Male | status = LC | status_system = IUCN3.1 | status_ref = <ref name=IUCN>{{cite iucn |author=BirdLife International |date=2021 |title=One-colored Becard ''Pachyramphus homochrous'' |volume=2021 |article-number=e.T22700673A137872534 |doi=10.2305/IUCN.UK.2021-3.RLTS.T22700673A137872534.en |access-date=12 November 2025}}</ref> | genus = Pachyramphus | species = homochrous | authority = Sclater, PL, 1859 | synonyms = *''Platypsaris homochrous'' | range_map = Pachyramphus homochrous map.svg }}
The '''one-colored becard''' ('''''Pachyramphus homochrous''''') is a species of bird in the family Tityridae, the tityras, becards, and allies. It is found in Colombia, Ecuador, Panama, Peru, and Venezuela.<ref name=IOC15.1>{{cite web |url=https://www.worldbirdnames.org/new/bow/cotingas/ |title=Cotingas, manakins, tityras, becards |website=IOC World Bird List |version =v 15.1 | editor1-last=Gill | editor1-first=Frank | editor1-link=Frank Gill (ornithologist) | editor2-last=Donsker | editor2-first=David | editor3-last=Rasmussen | editor3-first=Pamela | editor3-link=Pamela Rasmussen |date=March 2025 |access-date=3 March 2025 }}</ref>
==Taxonomy and systematics==
The one-colored becard was originally described in 1859 as ''Pachyramphus homochrous'', its current binomial.<ref>{{cite journal | last=Sclater |first=Philip Lutley | date= 1859 |title=List of the First Collection of Birds made by Mr. Louis Fraser at Pallatanga, Ecuador, with Notes and Descriptions of New Species | journal=Proceedings of the Zoological Society of London |volume=XXVII |page=142 |language=Latin, English | url=https://www.biodiversitylibrary.org/page/44707438 |access-date=November 12, 2025 }}</ref> For a time it and several other becards were placed in genus ''Platypsaris'' which was merged by most taxonomists into ''Pachyramphus'' in 1973.<ref name=AOU1998>{{cite book | last =<!--Not stated--> | first =<!--Not stated--> | title =Check-list of North American Birds | publisher =American Ornithologists' Union |edition =7th | date =1998 | location =Washington, D.C. | pages =419 }}</ref> It is now one of 18 becards in genus ''Pachyramphus'' that had been introduced in 1839 by George Gray.<ref name=IOC15.1/> The genus ''Pachyramphus'' has variously been assigned to the tyrant flycatcher family Tyrannidae and the cotinga family Cotingidae. Several early twenty-first century studies confirmed the placement of ''Pachyramphus'' in Tityridae and taxonomic systems made the reassignment.<ref name=SACClist>Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, D. F. Lane, L, N. Naka, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 29 September 2025. A classification of the bird species of South America. South American Classification Committee associated with the International Ornithological Union. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved 29 September 2025</ref> In 1998 the American Ornithological Society was unsure where to place the genus and listed its members as ''incertae sedis'' but in 2011 moved them to Tityridae.<ref name=52Supp>R. Terry Chesser, Richard C. Banks, F. Keith Barker, Carla Cicero, Jon L. Dunn, Andrew W. Kratter, Irby J. Lovette, Pamela C. Rasmussen, J. V. Remsen, Jr., James D. Rising, Douglas F. Stotz, and Kevin Winker. "Fifty-second supplement to the American Ornithologists' Union ''Check-list of North American Birds''". ''The Auk'' 2011, vol. 128:600–613 retrieved 22 October 2025</ref>
The one-colored becard has three subspecies, the nominate ''P. h. homochrous'' (Sclater, PL, 1859), ''P. h. quimarinus'' (Meyer de Schauensee, 1950), and ''P. h. canescens'' (Chapman, 1912).<ref name=IOC15.1/>
==Description==
The one-colored becard is about {{convert|16.5|cm|in|sigfig=2|abbr=on}} long and weighs about {{convert|35|g|oz|sigfig=2|abbr=on}}. The species is sexually dimorphic. Adult males of the nominate subspecies have a mostly dark slaty gray head and upperparts with a slightly darker crown and lighter rump. Their wings and tail are dark slaty gray with paler edges on the remiges. Their underparts are a somewhat paler gray their upperparts. They sometimes have a faint pinkish wash on the throat and a slight dusky tinge on the breast and upper belly. Adult females have a rufous-chestnut to rufous tawny crown, upperparts, and tail. Their wings have cinnamon-edged primaries and cinnamon-edged rufous secondaries and coverts. They have a whitish cinnamon spot above the lores on an otherwise buff-cinnamon face. Their underparts are mostly buffy cinnamon that is more whitish and cinnamon on the throat. Subspecies ''P. h. quimarinus'' is like the nominate. ''P. h. canescens'' has a slightly lighter throat and belly than the nominate.<ref name=OCBE-BOW>{{cite taxon|BOW|author=Mobley, J. A. |author2= E. de Juana |year=2020|title= One-colored Becard (''Pachyramphus homochrous'')|version=1.0|doi=10.2173/bow.oncbec1.01 |url=https://birdsoftheworld.org/bow/species/oncbec1/1.0/introduction|access-date= November 12, 2025|url-access=subscription}}</ref>
==Distribution and habitat==
The nominate subspecies of the one-colored becard has the largest range of the three. It is found in central and eastern Panama, on the Caribbean slope in the Canal area, on both slopes in eastern Panamá Province, and in the Pacific lowlands in Darién Province.<ref name=AOU1998/> Its range continues south on the Pacific slope of Colombia's Western Andes at least to southern Chocó Department.<ref name=OCBE-BOW/> One source shows its range in the country continuing all the way to Ecuador.<ref name=McMullan>{{cite book | last1 =McMullan | first1 =Miles | last2 =Donegan | first2 =Thomas M. | last3 =Quevedo | first3 =Alonso | title = Field Guide to the Birds of Colombia | publisher = Fundación ProAves| date =2010 | location =Bogotá | pages =176 |isbn =978-0-9827615-0-2 }}</ref> Its range further encompasses the entire length of western Ecuador and continues into northwestern Peru's Tumbes and Piura departments.<ref name=Ridgely2>{{cite book | last =Ridgely | first =Robert S. | last2 =Greenfield | first2 =Paul J. | title =The Birds of Ecuador: Field Guide | publisher =Cornell University Press | volume = II| date =2001 | location =Ithaca | pages =538–539 | isbn =978-0-8014-8721-7 }}</ref><ref name=Schulenberg>{{cite book | last =Schulenberg | first =T.S. | last2 =Stotz | first2 =D.F. | last3 =Lane | first3 =D.F. | last4 =O'Neill | first4 =J.P. | last5 =Parker | first5 =T.A. III | title =Birds of Peru | publisher =Princeton University Press | edition =revised and updated |series=Princeton Field Guides | date =2010 | location =Princeton, NJ | pages =480 |isbn = 978-0691130231 }}</ref> Subspecies ''P. h. quimarinus'' is found in the northwestern Colombian departments of Antioquia, Bolívar, and Magdalena.<ref name=OCBE-BOW/> ''P. h. canescens'' is found in Colombia to the northeast of ''quimarinus'' in Bolívar and Magdalena and in Venezuela on the eastern side of the Serranía del Perijá and the eastern and western sides of Lake Maracaibo.<ref name=OCBE-BOW/><ref name=Hilty>{{cite book | last =Hilty | first =Steven L. | title =Birds of Venezuela | publisher =Princeton University Press | edition =second | date =2003 | location =Princeton NJ | pages =647 | language =English }}</ref>
The one-colored becard inhabits a variety of forest types in the tropical zone. These include humid evergreen forest, dryer deciduous forest, gallery forest, and secondary forest.<ref name=AOU1998/><ref name=OCBE-BOW/> It also is found in clearings and arid scrublands that have tall trees.<ref name=OCBE-BOW/> In elevation it overall is mostly found from sea level to {{convert|900|m|ft|abbr=on}}.<ref name=AOU1998/> It reaches {{convert|1000|m|ft|abbr=on}} in Colombia, {{convert|1500|m|ft|abbr=on}} in Ecuador, {{convert|700|m|ft|abbr=on}} in Peru, and {{convert|500|m|ft|abbr=on}} in Venezuela.<ref name=McMullan/><ref name=Ridgely2/><ref name=Schulenberg/><ref name=Hilty/>
==Behavior== ===Movement===
The one-colored becard is a year-round resident.<ref name=AOU1998/>
===Feeding===
The one-colored becard feeds on insects and fruit. It usually forages in pairs though sometimes singly and joins mixed-species feeding flocks about as often as it remains apart from them.<ref name=OCBE-BOW/><ref name=Ridgely2/> It forages from the forest's mid-story to its subcanopy, usually at the forest edges.<ref name=OCBE-BOW/>
===Breeding===
The only information on the one-colored becard's breeding biology comes from a 2010 publication. Nests were found in southwestern Ecuador in February and March. They were irregular balls with a side entrance hanging from a tree branch between about {{convert|4|and|14|m|ft|round=5|abbr=on}} above the ground. They were made from dry grass and weeds lined with feathers and soft plant material. The clutches were of three and four eggs. The incubation period is not known but the time to fledging was estimated at 24 to 29 days after hatch.<ref>{{cite journal|last=Knowlton |first= J. I. |date=2010 |title=Breeding records from the Tumbesian region of Ecuador |journal=Ornitología Neotropical |volume=21 |number =1 |pages=109–129}}</ref>
{{birdsong|url=https://xeno-canto.org/species/Pachyramphus-homochrous |species=the one-colored becard}} ===Vocalization===
The one-colored becard's usual song is "a rather variable, loud, sharp, and sputtering or chattering ''stet-ee-ee-teet-tsit-tsit-tsitts-tsít'' or ''ske-e-et’et’ittt, tseer, tsrip''". It also often gives a "squeaky and high-pitched ''tweíuuw''".<ref name=OCBE-BOW/>
==Status==
The IUCN has assessed the one-colored becard as being of Least Concern. It has a large range; its estimated population of at least 50,000 mature individuals is believed to be decreasing. No immediate threats have been identified.<ref name=IUCN/> Overall it is considered to occur locally rather than continuously.<ref name=AOU1998/> It is "fairly common" in Colombia, "widespread and locally fairly common" in Ecuador, and "uncommon to locally fairly common" in Peru.<ref name=McMullan/><ref name=Ridgely2/><ref name=Schulenberg/> It is known from only a few records in Venezuela.<ref name=Hilty/> It occurs in several protected areas, most of them in Ecuador.<ref name=OCBE-BOW/>
==References== {{Reflist}}
{{Taxonbar|from=Q1304401}}
Category:Pachyramphus Category:Birds described in 1859 Category:Taxa named by Philip Sclater Category:Birds of Colombia Category:Birds of Ecuador Category:Taxonomy articles created by Polbot