Grassland sparrow

The grassland sparrow (Ammodramus humeralis) is a species of bird in the family Passerellidae. It is found in Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela. Its natural habitats are dry savannah, subtropical or tropical seasonally wet or flooded lowland grassland, and pastureland.

Grassland sparrow

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Passerellidae
Genus: Ammodramus
Species:
A. humeralis
Binomial name
Ammodramus humeralis
(Bosc, 1792)
Synonyms
  • Myospiza humeralis

Description

The grassland sparrow is a robust species with a large head and a short tail, with a total length of about 13 cm (5 in). The wings are short and the legs fairly long.[2] The upper parts are brownish-grey streaked with black. The breast and flanks are greyish-buff or pinkish-buff and the underparts are dull white. There is a narrow white eye-ring, and a spot of yellow on the lores and another on the bend of the wing. The song is a high-pitched but thin series of plaintive phrases, "eee, telee, teeeee". This bird is similar in appearance to the yellow-browed sparrow, but that has more yellow on the face and the voice is quite distinct.[3]

Distribution and habitat

This sparrow is native to the western half of South America. Its range includes Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay and Venezuela.[1] Its typical habitat is tall savannah grassland, but it also inhabits pastureland and cerrado. It is present in lowland areas and at altitudes of up to 1,100 m (3,600 ft), possibly higher in southern Venezuela.[3]

Behavior

A "secretive" bird, this species feeds on the ground and flits away into the vegetation if disturbed.[3] It can be observed when singing from an elevated perch, and feeds out in the open in the early morning and late evening.[3] The diet consists of grass and other seeds, and small insects are also eaten, particularly during the breeding season. The nest is cup-shaped and built on the ground, with a runway through the foliage leading to it.[2]

Status

The grassland sparrow is a common bird and has a very extensive range. No particular threats to this bird are known and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".[1]

gollark: Anyway. Yes. Graphing calculators are *pure* bee, because they cost about as much as my somewhat low-end phone, despite being worse in basically every way except being allowed into exams.
gollark: Probably.
gollark: I don't have one because they're expensive and I disagree with the entire concept of graphing calculators.
gollark: Some of the fancier graphing models' polynomial solver things go up to a degree of 6 for unfathomable reasons, but they are probably approximatizing.
gollark: Otherwise it would probably go up to quintics and such.

References
  1. BirdLife International (2012). "Ammodramus humeralis". IUCN Red List of Threatened Species. 2012: e.T22721147A39921831. doi:10.2305/IUCN.UK.2012-1.RLTS.T22721147A39921831.en.
  2. Jaramillo, A. (2016). "Grassland sparrow (Ammodramus humeralis)". Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. Retrieved 5 June 2016.
  3. Ridgely, Robert S.; Guy, Tudor (1989). The Birds of South America: Volume 1: The Oscine Passerines. University of Texas Press. pp. 465–466. ISBN 978-0-292-70756-6.
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