Black-striped sparrow

Black-striped sparrow
At Cordillera de Talamanca, Costa Rica
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Emberizidae
Genus: Arremonops
Species: A. conirostris
Binomial name
Arremonops conirostris
(Bonaparte, 1850)

The black-striped sparrow (Arremonops conirostris) is a passerine bird which breeds from northern Honduras to western Ecuador, northern Brazil and Venezuela.

This American sparrow is a common bird in humid lowlands and foothills up to 1,500 m (4,900 ft) altitude, in semi-open habitats such as thickets, young second growth, overgrown fields and shady plantations and gardens.

The large domed nest, built by the female, is made of coarse plant material and has a wide side entrance. It is normally placed less than 1 m (3.3 ft) up in dense growth, but may be as high as 1.8 m (5.9 ft). The clutch is two, rarely three, unmarked white eggs, which are incubated by the female alone for 12–14 days before hatching.

The black-striped sparrow is a mainly terrestrial species, 16.5 cm (6.5 in) long and weighing 37.5 g (1.32 oz). The adult is distinctive, with a grey head which has broad black stripes each side of the crown and narrower black stripes through each eye. The upperparts are olive, with yellow on the bend of the wing. The underparts are dull white shading to grey on the breast sides and to olive on the lower belly. Young birds have brown stripes on a yellower head, brownish-olive upperparts and yellow-olive underparts.

This species resembles the olive sparrow, but is larger, and the ranges do not overlap. There are seven subspecies:[2]

The black-striped sparrow has a metallic churk call. The male’s song, given from the ground or a low perch, consists of a whistles and slurred notes, tsweet-tsweet tsweet-tswee ti-ti-ti, followed by a trill, but varies geographically.

The black-striped sparrow feeds on insects, spiders and seeds taken on the ground, and also picks berries and invertebrate prey from low bushes. It is seen in pairs, never in flocks, and is a shy and retiring species.

References

  1. BirdLife International (2012). "Arremonops conirostris". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
  2. Gill, F.; Donsker, D., eds. (2014). "IOC World Bird List". IOC World Bird List (v 4.2). doi:10.14344/IOC.ML.4.2.

External links

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