Arremonops rufivirgatus
The Olive Sparrow (Arremonops rufivirgatus) is a subtly elegant and often elusive member of the New World sparrow family, Passerellidae. Averaging 14-16 cm (5.5-6.3 in) in length and weighing 16-26 grams (0.56-0.92 oz), it presents a distinctive appearance with olive-green upperparts and a pale whitish to light gray belly. Its most striking field marks are the unstreaked gray head adorned with two prominent rufous-brown crown stripes and a rufous supercilium (eyebrow stripe), setting it apart...
Resident in dense, thorny scrub, chaparral, brushy clearings, and riparian thickets, typically at low to moderate elevations.
Feeds predominantly on insects and other invertebrates found by scratching leaf litter, supplemented with a significant amount of seeds, small fruits, and berries, especially during winter months.
Olive Sparrows are primarily diurnal, active during the cooler parts of the day and foraging mostly on the ground by scratching vigorously through leaf litter to expose insects. They are famously skulking, preferring to remain hidden within dense vegetation, often detected only by their distincti...
The Olive Sparrow is a resident species, with its distribution centered primarily in Mexico and extending into the southernmost United States and Central America. In the United States, it is found year-round in extreme southern Texas, particularly within the Lower Rio Grande Valley and some areas...
Least Concern
- The Olive Sparrow is renowned for its 'skulking' behavior, making it one of the most challenging sparrows to observe despite its commonness in suitable habitats. - Its distinctive song, often described as a 'bounced-ball' sound due to its accelerating tempo, is a primary identification cue. - U...