The Orinoco piculet (''Picumnus pumilus'') is a species of

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

Picumninae The piculets are a distinctive subfamily, Picumninae, of small woodpeckers which occur mainly in tropical South America, with just three Asian and one African species. Like the true woodpeckers, piculets have large heads, long tongues which the ...

of the woodpecker family

Picidae Woodpeckers are part of the bird family Picidae, which also includes the piculets, wrynecks, and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar, and the extreme polar regions. M ...

.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved July 24, 2022 It is found in

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

, and possibly

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

.Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of birds of the world: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved November 10, 2022Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved July 24, 2022

Taxonomy and systematics

The Orinoco piculet was for a time considered a subspecies of

Lafresnaye's piculet Lafresnaye's piculet (''Picumnus lafresnayi'') is a species of bird in subfamily Picumninae of the woodpecker family Picidae. It is found in Brazil, Colombia, Ecuador, and Peru.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Ja ...

(''P. lafresnayi''), and they are now thought to form a superspecies. 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 "unispec ...

Description

The Orinoco piculet is about long and weighs . Adult males have a dark brown cap with yellow spots on the forehead and whiter ones on the rest of it. Their face is blackish with white spots, bare gray-blue skin around the eye, and a pale stripe behind the eye. Their upperparts are brownish green. Their

primaries Primary elections, or direct primary are a voting process by which voters can indicate their preference for their party's candidate, or a candidate in general, in an upcoming general election, local election, or by-election. Depending on the c ...

and secondaries are brown with greenish edges and tips. The upper side of their tail is black; the innermost pair of feathers have white inner webs and the outer three pairs have a white patch near the tip. Their chin, throat, and underparts are pale yellowish to buffy white with dark brown bars except in the center of the belly. The beak is blackish and the legs gray. Adult females are identical but for whitish spots on their entire crown. Juveniles are similar to adults but duller overall, greener above, and less evenly barred below.Winkler, H. and D. A. Christie (2020). Orinoco Piculet (''Picumnus pumilus''), 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.oripic1.01 retrieved January 9, 2023

Distribution and habitat

According to the

Clements taxonomy ''The Clements Checklist of Birds of the World'' is a book by Jim Clements which presents a list of the bird species of the world. The most recent printed version is the sixth edition (2007), but has been updated yearly, the last version in 2022 ...

the Orinoco piculet is found in eastern Colombia, northwestern Brazil, and adjacent southern Venezuela's Amazonas state. However, the South American Classification Committee of the

American Ornithological Society The American Ornithological Society (AOS) is an ornithological organization based in the United States. The society was formed in October 2016 by the merger of the American Ornithologists' Union (AOU) and the Cooper Ornithological Society. Its m ...

has no records from Venezuela. The species inhabits the edges of humid mature forest, the edges of

gallery forest A gallery forest is one formed as a corridor along rivers or wetlands, projecting into landscapes that are otherwise only sparsely treed such as savannas, grasslands, or deserts. The gallery forest maintains a more temperate microclimate above th ...

, and dense thickets. In elevation it mostly ranges up to but occurs locally as high as .

Behavior

Movement

As far as is known, the Orinoco piculet is a year-round resident throughout its range.

Feeding

The Orinoco piculet forages from the forest's lower strata to the canopy. Its diet has not been detailed but is assumed to be ants and other small insects.

Breeding

The Orinoco piculet's breeding season is thought to include November and December but nothing else is known about its breeding biology.

Vocalization

The Orinoco piculet's vocalizations have not been transcribed.

Status

The

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

has assessed the Orinoco piculet as being of Least Concern. It has a restricted range and its population size is not known and is believed to be decreasing. No immeditate threats have been identified. It is " orly known and probably uncommon."