Black-throated Sparrow

The black-throated sparrow, Amphispiza bilineata, is a diminutive avian resident of the New World, gracing the southwestern United States and Mexico with its presence. This species, the sole representative of its genus, is a study in contrasts with its pale gray upperparts and striking black and white head pattern.

Identification Tips

When observing this bird, one will note its length ranging from 4.7 to 5.5 inches, a modest wingspan of 7.7 inches, and a weight between 0.4 and 0.5 ounces. The adult is distinguished by its black throat, while the immature birds lack this feature, making them slightly less conspicuous.

Habitat

The black-throated sparrow is a denizen of arid desert hillsides and scrub, an environment where it is supremely adapted to thrive. It is sometimes colloquially known as the desert sparrow, though this name is more commonly associated with a different species found in Africa and Asia.

Behaviour

This sparrow is often seen in small groups, although larger congregations may form around water sources in their desert habitat. They exhibit a preference for foraging on the ground near bushes and cacti, and occasionally they may be observed gleaning food from leaves and twigs.

Song & Calls

The call of the black-throated sparrow is a high, bell-like sound, while its song is a simple yet enchanting mechanical tinkling.

Breeding

Breeding season finds the black-throated sparrow constructing a loose nest of grass, twigs, and plant fibers, artfully concealed in brush some 6 to 18 inches above the ground. The nest cradles a clutch of three or four white or pale blue eggs.

Diet and Feeding

The diet of the black-throated sparrow varies seasonally, with insects being the primary fare during the breeding season and seeds taking precedence during the non-breeding months.

Conservation status

The IUCN Red List currently categorizes the black-throated sparrow as Least Concern, indicating a stable population without significant immediate threats to its survival.