Northern Mockingbird

Common Name:
Northern Mockingbird
Scientific Name:
Mimus polyglottos
Type:
Birds
Size:
Length: 10 inches
IUCN Red List Status:
Least concern
Current Population Trend:
Stable

This very common, conspicuous mimid of the southern United States is known for its loud, mimicking song, often heard during spring and summer nights in suburban neighborhoods. Both sexes aggressively defend nesting and feeding territories. They flash their white outer tail feathers and white wing patches conspicuously during courtship and territorial displays. Seen often on wires and fences in towns, the Northern often feeds on berries during the winter. Monotypic. Length 10".

Identification

Sexes similar. Adult: about the size of an American robin, but thinner and longer tailed. Upperparts gray, unstreaked; underparts grayish white, unstreaked; long black tail has white outer tail feathers; conspicuous white wing bars; white patch at the base of primaries contrasts with blacker wings. Black line through a yellow eye. Bill relatively short and straight. Juvenile: un­der­­parts can be heavily spotted; upperparts with pale edging give back and head a streaked appearance; black line through eye less distinct; eye darker.

Similar Species

The loggerhead shrike is similarly colored, but note distinct shape differences, particularly in the bill; shrike lacks white wing bars and has more extensive black mask.

Voice

Call: a loud, sharp check. Song: long, complex song consisting of a mixture of original and imitative phrases, each repeated several times. Excellent mimic of other bird species. Often sings at night.

Status and Distribution

Common and conspicuous. Breeding: nests in a variety of habitats, including suburban neighborhoods. Migration: birds in the northern portion of range and at higher elevations migrate south during fall and winter. Birds in the southern portion of range are resident. Vagrant: birds are found casually north of mapped range.

Population

Range is expanding as a result of urbanization and creation of disturbed habitats.

—From the National Geographic book Complete Birds of North America, 2006

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