[order] Passeriformes | [family] Emberizidae | [latin] Ammodramus humeralis | [UK] Grassland Sparrow | [FR] Bruant des savanesq | [DE] Wachtelammer | [ES] Sabanero de Pastizales | [IT] Passero delle erbe | [NL] Graslandgors
Subspecies
| Genus | Species | subspecies | Breeding Range | Breeding Range 2 | Non Breeding Range |
| Ammodramus | humeralis | SA | widespread | ||
| Ammodramus | humeralis | humeralis | |||
| Ammodramus | humeralis | pallidulus | |||
| Ammodramus | humeralis | tarijensis | |||
| Ammodramus | humeralis | xanthornus |
Physical charateristics
It is a smallish streaked seedeater with yellow lores, a narrow white eye-ring and chestnut edging on the mantle and flight feathers.
Listen to the sound of Grassland Sparrow
[audio:http://www.aviflevoland.nl/sounddb/G/Grassland Sparrow.mp3]
Copyright remark: Most sounds derived from xeno-canto
| wingspan min.: | 0 | cm | wingspan max.: | 0 | cm |
| size min.: | 12 | cm | size max.: | 13 | cm |
| incubation min.: | 0 | days | incubation max.: | 0 | days |
| fledging min.: | 0 | days | fledging max.: | 0 | days |
| broods: | 1 | eggs min.: | 2 | ||
| eggs max.: | 3 |
Range
It is found in Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela. The Grassland Sparrow is found east of the Andes from Colombia to central Argentina but is missing from the Amazon Basin upstream from the rio Tapajos.
Habitat
Its natural habitats are dry savanna, subtropical or tropical seasonally wet or flooded lowland grassland, and pastureland. It inhabits dry grass fields, cerrados, cultivated lands and areas with tall thickets.
Reproduction
The nest is an open cup placed on the ground made of and lined with dead grass. Clutch size is 2-3 eggs. Some reports state an on-ground nest doemd with a side entracne. When disturbed while incubated the adult will fake an injury while walking from the nest.
Feeding habits
Feeds on seeds and small insects found in the soil. When frightened, it flies for short distances, hiding in the dense vegetation.
Conservation
This species has a large range, with an estimated global extent of occurrence of 8,800,000 km². The global population size has not been quantified, but it is believed to be large as the species is described as ‘common’ in at least parts of its range (Stotz et al. 1996). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
Migration
Sedentary throughout range.
Distribution map
Literature
Title BEHAVIOR OF THE GRASSLAND SPARROW AND TWO SPECIES OF SEED-FINCHES
Author(s): ALAN LILL
Abstract: The behavior of many of the predominantly granivor..[more]..
Source: The Auk 91: 35-43. January 1974
Title REPRODUCTIVE SUCCESS OF GRASSLAND SPARROWS ON A RECLAIMED SURFACE MINE IN WEST VIRGINIA
Author(s): THOMAS WRAY, II, KENNETH A. STRAIT, AND ROBERT C. WHITMORE
Abstract: There productive successo f GrasshopperS parrows (..[more]..
Source: The Auk 99: 157-164. January 1982
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