Northern nightingale-wren

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Northern nightingale-wren - Wikipedia

From Wikipedia, the free encyclopedia

Northern nightingale-wren

Conservation status
Least Concern (IUCN 3.1)^[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Troglodytidae
Genus:	Microcerculus
Species:	M. philomela
Binomial name
*Microcerculus philomela* (Salvin, 1861)

The northern nightingale-wren (Microcerculus philomela), or nightingale wren, is a species of passerine bird in the family Troglodytidae. It is found in Belize, Costa Rica, Guatemala, Honduras, Mexico, and Nicaragua.^[2]^[3]

Taxonomy and systematics

The northern nightingale-wren forms a species pair with the southern nightingale-wren (Microcerculus marginatus) and was in the past considered conspecific with it. It is currently treated as a species in its own right by the International Ornithological Committee (IOC) and the Clements taxonomy, though under different English names. It is monotypic.^[2]^[3]^[4]

Description

The northern nightingale-wren is 10 to 11.5 cm (3.9 to 4.5 in) long; seven males weighed 17.4 to 21.5 g (0.61 to 0.76 oz) and four females 16.4 to 17.4 g (0.58 to 0.61 oz). Adults are almost entirely dark brown, but with a dark gray throat and breast. Black tips on feathers of both the upper- and undersides give a scalloped appearance. Juveniles are similar though the scaling on their upperparts is darker and that on the underparts is whitish to pale gray.^[4]

Distribution and habitat

The northern nightingale-wren is found from Chiapas in Mexico through Guatemala, southern Belize, Honduras, and Nicaragua into northern Costa Rica. It mostly occurs along the Atlantic side but is found locally on the Pacific side in Chiapas and Costa Rica. In Mexico it ranges in elevation from near sea level to 1,400 m (4,600 ft), and in Costa Rica occasionally up to that level but more commonly only as high as 1,200 m (3,900 ft).^[4]

The northern nightingale-wren inhabits the interior of lowland tropical forest. It favors virgin evergreen forest and undisturbed cloud forest.^[4]

Behavior

Feeding

The northern nightingale-wren forages on and near the ground, in undergrowth, brush piles, and on fallen logs. It opportunistically follows army ant swarms. Its diet is almost entirely insects.^[4]

Breeding

The northern nightingale-wren is reported to breed between May and September in Costa Rica, but little else is known about its nesting biology.^[4]

Vocalization

Songs and calls

Listen to northern nightingale-wren on xeno-canto

The northern nightingale-wren's song is a "confident to hesitant, rising and falling series of whistles". It is sung during most of the year and often from low perches.^[4]

Status

The IUCN has assessed the northern nightingale-wren as being of Least Concern.^[1] However, because of its preference for undisturbed forest, it is considered under threat in much of its range due to the clearing and fragmentation of forest for agriculture.^[4]

References

^ ^a ^b BirdLife International (2016). "Northern Nightingale-wren Microcerculus philomela". IUCN Red List of Threatened Species. 2016. Retrieved 18 July 2021.
^ ^a ^b Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)". Retrieved July 14, 2021.
^ ^a ^b Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 15, 2019
^ ^a ^b ^c ^d ^e ^f ^g ^h Rentschlar, K. (2020). Nightingale Wren (Microcerculus philomela), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.nigwre1.01 retrieved July 18, 2021

Taxon identifiers
Microcerculus philomela	Wikidata: Q3314471 Wikispecies: Microcerculus philomela BirdLife: 22711537 BOW: nigwre1 CoL: 42SKQ eBird: nigwre1 GBIF: 2493835 iNaturalist: 7636 IRMNG: 10985448 ITIS: 561108 IUCN: 22711537 Neotropical: nigwre1 Observation.org: 76574 Open Tree of Life: 3599107 Xeno-canto: Microcerculus-philomela

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