French: Tohi olive German: Olivrückenammer Spanish: Cerquero oliváceo
Brownsville, Texas, USA
Subspecies and Distribution
A. r. sinaloae
Nelson, 1899 – W Mexico from C Sinaloa S to Nayarit.
A. r. sumichrasti
(Sharpe, 1888) – W coast of Mexico from Jalisco, Colima, Michoacán and Guerrero S to Isthmus of Tehuantepec (Oaxaca).
A. r. chiapensis
Nelson, 1904 – C valley of Chiapas, in S Mexico.
A. r. superciliosus
(Salvin, 1865) – Pacific Sparrow – Pacific coast of Nicaragua and Costa Rica S to Santo Domingo.
A. r. rufivirgatus
(Lawrence, 1851) – Olive Sparrow – extreme S USA (S Texas) and NE Mexico from N Coahuila (Sierra Santa Rosa#R) and Nuevo León S to S coastal Tamaulipas.
A. r. ridgwayi
(Sutton & Burleigh, 1941) – S interior of Tamaulipas, E San Luis Potosí, Hidalgo and N Veracruz.
A. r. crassirostris
(Ridgway, 1878) – Atlantic coast of SE Mexico from C & S Veracruz S to E Puebla and N Oaxaca.
A. r. verticalis
(Ridgway, 1878) – Yucatan Sparrow – E Tabasco and Yucatán Peninsula (SE Mexico) S to N Guatemala (Petén) and N Belize.
A. r. rhyptothorax
Parkes, 1974 – N Yucatán Peninsula.
13·5–15 cm; 15–30 g (Texas). A fairly stout, dull olive-green sparrow. Nominate race has head dull grey, dull brown lateral crownstripe, thin brown eye... read more
Song a monotonous series of accelerating chipping notes, “chip chip chip chip chip-chip-chip-... read more
Tangles of thorny shrubs, e.g. mesquite (Prosopis), Texas ebony (Pithecollobium... read more
Food and feeding
Few data on diet; known to consume small insects, spiders (Araneae), seeds, and occasionally fruits. Forages principally on ground and low... read more
Nests with eggs mid-Mar to early Sept in Texas (lower Rio Grande Valley), but most nest May–Jun and Aug–Sept, and apparently... read more
Generally sedentary; some may move during very cold seasons, or because of drought.
Status and conservation
Not globally threatened. Often common or very common in appropriate habitat; common to fairly common in most of Mexico, but uncommon in NE Coahuila (San Juan de Sabinas).... read more
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