Ammodramus humeralis
The Grassland Sparrow, *Ammodramus humeralis*, is a small, cryptically colored passerine belonging to the New World sparrow family, Passerellidae. Measuring around 11-13 cm (4.3-5.1 inches) in length with a wingspan of approximately 18-20 cm (7-8 inches), it is distinguished by its streaky brown upperparts, plain buffy underparts, and a relatively short tail. Key identification marks include a pale supercilium, dark lateral crown stripes, and often a subtle yellowish patch at the bend of the ...
This species primarily inhabits open grasslands, savannas, pastures, and agricultural fields with scattered shrubs, typically found at low to moderate elevations.
The diet consists primarily of insects, especially grasshoppers, crickets, and beetles, supplemented with a significant proportion of grass seeds and other small seeds, foraged by gleaning on the ground.
The Grassland Sparrow is a notoriously shy and secretive bird, preferring to remain hidden amidst dense vegetation, often only flushing at close range before quickly dropping back into cover. It is primarily diurnal, though its distinctive song can be heard throughout the day, particularly during...
The Grassland Sparrow boasts an extensive distribution across much of South America, making it one of the most widespread grassland birds on the continent. Its breeding and resident range extends from northeastern Colombia and Venezuela, through the Guianas, eastern Ecuador, eastern Peru, Bolivia...
Least Concern
- The Grassland Sparrow's scientific name, *Ammodramus humeralis*, translates roughly to 'sand runner with shoulders,' referencing its ground-dwelling habits and the yellowish patch on its shoulder. - It is often easier to identify this bird by its distinctive, buzzing, insect-like song than by s...