Illustration © David Allen Sibley.
Learn more about these drawings.
Text © Kenn Kaufman, adapted from
Lives of North American Birds
Adult. Photo: Becky Matsubara/Flickr (CC BY-2.0)
Crotophaga sulcirostris
Conservation status | Numbers in United States probably stable. Has probably increased in tropics as clearing of forests has created more habitat for them there. |
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Family | Cuckoos, Roadrunners, Anis |
Habitat | Thick brush, overgrown pastures. In the United States, found mostly where dense thickets are next to open grassland, pastures, or marshes, or at edges of low riverside woods. In the tropics, inhabits any kind of semi-open country in the lowlands, avoiding unbroken forest. |
Forages mostly by hopping and running on the ground; will also forage in bushes, especially to eat berries. Often associates closely with cattle in open pastures, catching the insects flushed by the larger animals. In a similar way, at the edges of tropical forest, will follow swarms of army ants to eat the insects or other creatures flushed by the ants.
3-4 (perhaps sometimes more) laid by each female in group. Eggs pale blue. Females may attempt to throw out each other's eggs. Incubation is apparently by all adults in group (dominant male usually incubates at night), 13-14 days. Young: Fed by all adults in group. Young climb out of nest after about 6-7 days, can fly poorly at about 10 days, can fly well at about 17 days. Sometimes 2 broods per year.
Fed by all adults in group. Young climb out of nest after about 6-7 days, can fly poorly at about 10 days, can fly well at about 17 days. Sometimes 2 broods per year.
Mostly large insects. Feeds on insects including grasshoppers, beetles, and others. May take external parasites from cattle. Also eats spiders, lizards, other small creatures. Will feed on small fruits and berries.
In courtship, male feeds female. Often uses communal nest: one to 4 pairs will work together to build nest, then the female of each pair will lay eggs in the nest, and all adults will help incubate the eggs. In addition to the breeding pairs, group may include extra adult "helpers." Nest site is in low tree, usually 5-15' above ground, sometimes lower or higher. Nest (built by both sexes) is bulky and bowl-shaped, made of twigs, lined with green leaves.
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