Chalk-browed Mockingbird

Mimus saturninus

The Chalk-browed Mockingbird (Mimus saturninus) is a medium-sized passerine, a vibrant member of the Mimidae family, renowned for its extensive vocal repertoire and striking field marks. Measuring 23.5-27.5 cm (9.3-10.8 inches) in length and weighing 56-75 grams (2.0-2.6 ounces), it boasts an ashy-gray back, paler underparts, and a distinct, broad white supercilium – its 'chalk-brow' – that contrasts sharply with a dark eye-stripe. In flight, prominent white wing patches are visible, compleme...

Habitat

This adaptable species thrives in open and semi-open environments, including dry savannas, grasslands with scattered shrubs and trees, agricultural areas, urban parks, and gardens, from sea level up to moderate elevations.

Diet

Their omnivorous diet consists mainly of insects and other small invertebrates, supplemented significantly by a wide variety of fruits and some seeds, often foraging on the ground or in low vegetation.

Behavior

Chalk-browed Mockingbirds are diurnal, active from dawn to dusk, often roosting communally outside the breeding season. They are primarily ground foragers, meticulously searching for insects and small invertebrates, but also glean fruits from bushes and trees. During the breeding season, they are...

Range

The Chalk-browed Mockingbird is a widespread resident across central and eastern South America, exhibiting little to no migratory behavior. Its extensive breeding range spans from central and southern Brazil, eastern Bolivia, Paraguay, and Uruguay, southward throughout much of northern and centra...

Conservation Status

Least Concern

Fun Facts

- The 'chalk-brow' that gives this bird its name is a prominent white stripe above its eye, a key identification mark. - Like its northern relatives, the Chalk-browed Mockingbird is a superb mimic, capable of incorporating calls and songs of dozens of other bird species into its own complex melod...

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