Black-throated Sparrow

Amphispiza bilineata

Order

PASSERIFORMES

Family

New World Sparrows and Towhees (Passerellida)

Code 4

BTSP

Code 6

AMPBIL

ITIS

Egg Color:

White or light blue



Number of Eggs:

2 - 4



Incubation Days:

12 - 15



Egg Incubator:

Female



Nest Location:

Less than 10 feet above the ground.



Nest Material:

Forbs and dried grasses with lining of rootlets and mammal hair.



Migration:

Northern birds migrate



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General

Black-throated Sparrow: Medium-sized sparrow with gray-brown upperparts, unstreaked, white underparts, and a black bib. Head has dark gray cap and sharply contrasting white eyebrow and cheek stripe. Long, round-tipped tail is edged with white. Sexes are similar. Juvenile has streaked upper breast and lacks black bib.

Range and Habitat

Black-throated Sparrow: Breeds from central Oregon to northeastern California, southwestern Wyoming, and southeastern Colorado southward to central Arizona and New Mexico. Spends winters south to the desert regions of the southwestern U.S. from California to central Texas south into Mexico. Preferred habitats include deserts and scrublands.

Breeding and Nesting

Black-throated Sparrow: Two to four white or light blue eggs are laid in a loosely built nest made of bark strips, grass, and stems, lined with wool, hair, or feathers, and built in a thorny bush. Incubation ranges from 12 to 15 days and is carried out by the female.

Foraging and Feeding

Black-throated Sparrow: Feeds on seeds during winter and insects during breeding season. Also consumes grass and herbs. Gravel is sometimes ingested to aid in digestion; forages on the ground.

Vocalization

Black-throated Sparrow: Song is comprised of two clear notes followed by a buzzing trill.

Similar Species

Black-throated Sparrow: Sage and Five-striped sparrows have white throats.

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

UpperpartsX
Back, rump, hindneck, wings, and crown.
BreastX
The upper front part of a bird.
CapX
The area on top of the head of the bird.
EyebrowX
Also called the supercilicum or superciliary it is the arch of feathers over each eye.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X