Nava's wren (''Hylorchilus navai'') 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 ...
in the family
Troglodytidae. It is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
.
Taxonomy and systematics
Nava's wren was originally treated as a subspecies of ''Hylorchilus sumichrasti'', which at that time was called slender-billed wren. After the split, the now-
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 ...
''H. sumichrasti'' was renamed
Sumichrast's wren
Sumichrast's wren (''Hylorchilus sumichrasti''), also known as the slender-billed wren, is a species of bird in the family Troglodytidae. It is endemic to Mexico.
Taxonomy and systematics
Sumichrast's wren is monotypic. A former subspecies, ...
. Nava's wren is also monotypic.
[Kroodsma, D. E. and D. Brewer (2020). Nava's Wren (''Hylorchilus navai''), 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.navwre1.01 retrieved June 2, 2021]
Description
Nava's wren is long; a female weighed . The adults have a rich brown crown and upperparts and a tawny face. Their throat and upper chest are whitish that transitions to pale gray on the lower chest and gray-brown at the vent. The lower chest has faint scalloping and the flanks are sooty brown.
[
]
Distribution and habitat
Nava's wren occurs in a small area of southern Mexico, in southeastern Veracruz
Veracruz (), formally Veracruz de Ignacio de la Llave (), officially the Free and Sovereign State of Veracruz de Ignacio de la Llave ( es, Estado Libre y Soberano de Veracruz de Ignacio de la Llave), is one of the 31 states which, along with Me ...
, western Chiapas
Chiapas (; Tzotzil language, Tzotzil and Tzeltal language, Tzeltal: ''Chyapas'' ), officially the Free and Sovereign State of Chiapas ( es, Estado Libre y Soberano de Chiapas), is one of the states that make up the Political divisions of Mexico, ...
, and barely into northeastern Oaxaca
Oaxaca ( , also , , from nci, Huāxyacac ), officially the Free and Sovereign State of Oaxaca ( es, Estado Libre y Soberano de Oaxaca), is one of the 32 states that compose the political divisions of Mexico, Federative Entities of Mexico. It is ...
. It inhabits undisturbed forest with outcrops of Karst
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant ro ...
limestone between the elevations of .[
]
Behavior
Feeding
Though no dietary data are available for Nava's wren, it probably feeds mostly or entirely on invertebrates. It forages on the ground, especially among rocks and on rock faces.[
]
Breeding
The breeding phenology
Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonality, seasonal and interannual variations in climate, as well as environmental factor, habitat factors (such as elevation).
Examples includ ...
of Nava's wren has not been documented.[
]
Vocalization
The male Nava's wren sings "a varied, often stuttering warble of mellow whistles
The female's song is "an introductory note followed by rapid series of 8 or more loud whistles
The species' call is "a metallic 'tink'
[
]
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 Nava's wren as Vulnerable "owing to its small and declining range" and that its population is estimated to be fewer than 7000 adults.[
]
References
External links
BirdLife Species Factsheet.
{{Taxonbar, from=Q2225237
Nava's Wren
Nava's wren (''Hylorchilus navai'') is a species of bird in the family Troglodytidae. It is endemic to Mexico.
Taxonomy and systematics
Nava's wren was originally treated as a subspecies of ''Hylorchilus sumichrasti'', which at that time was ...
Endemic birds of Southern Mexico
Nava's wren
Nava's wren (''Hylorchilus navai'') is a species of bird in the family Troglodytidae. It is endemic to Mexico.
Taxonomy and systematics
Nava's wren was originally treated as a subspecies of ''Hylorchilus sumichrasti'', which at that time was ...
Taxonomy articles created by Polbot