Tamaulipas Crow
Corvus imparatus

Conservation status | Despite its adaptability, might be vulnerable because of ongoing destruction of habitat in its very limited native range. |
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Family | Crows, Magpies, Jays |
Habitat | Semi-open country. In Texas, seen mostly in and near the Brownsville garbage dump. In Mexico, found in dry brushland, arid scrub, farms, ranches, towns. Avoids unbroken forest, mountains, and extreme desert situations, and not often found on seashore. |
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Feeding Behavior
Forages mostly by walking on ground; also probably does some foraging in trees. Except when nesting, usually forages in flocks.
Eggs
4. Pale blue, streaked with pale olive-buff. Incubation is apparently by female only, 17-18 days. Young: Both parents bring food for nestlings. Development of young in the wild not well known; may leave the nest roughly 30-35 days after hatching.
Young
Both parents bring food for nestlings. Development of young in the wild not well known; may leave the nest roughly 30-35 days after hatching.
Diet
Probably omnivorous. Diet not known in detail, but probably like other crows in eating a wide variety of items. Scavenges for refuse, and known to eat carrion, insects, seeds; probably also birds' eggs, berries, nuts, various other things.
Nesting
Has only been known to nest a few times in Texas. Breeding behavior is not well known. May nest in loose colonies. Courtship may involve two birds perching close together, touching bills and preening each other's feathers; one bird (male?) may feed the other. Nest site is usually in tree; the first nests found in Texas were built in the open on a framework of steel beams. Both sexes help build nest, a substantial platform or shallow basket of sticks and plant fibers, lined with softer materials.
Illustration © David Allen Sibley.
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Text © Kenn Kaufman, adapted from
Lives of North American Birds
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Migration
Mostly a permanent resident; disperses somewhat in winter, with small flocks formerly moving north into Texas. Very few have occurred in recent years.
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Learn moreSongs and Calls
A soft croaking gar-lic, very different from familiar caw, caw of American Crow.Learn more about this sound collection.