Guira Cuckoo (Guira guira) |
Guira guira occurs in tropical and subtropical South America east and south of the Amazon Basin and south to central Argentina. In open and semi-open habitats including edges of secondary forests, savanna, scrublands, pampas, pastures and fields with some standing trees, and suburbs; up to 1,200 m. Benefited from deforestation. A shaggy-looking cuckoo with a long tail; total length 36-42 cm; tail c. 20 cm; weight 103-169 g. The head, throat, chest and belly are whitish-buff, streaked; a short orange-rufous crest; yellow to orange bill; dark brown upperparts streaked with white; white rump; dark-brown tail. A gregarious species seen in groups of 6-8; up to 20. Groups huddle together in roosts and during cold weather. Guira Cuckoo breeds communally; several females lay in a single nest; 5-7 eggs per female, up to 20 eggs overall. Sometimes lays in nests of the anis (Crotophaga spp.). The nest is a twig platform in thorny tree or shrub, 2-5 m above the ground. Incubation 10-15 days; many eggs and small chicks are lost to competition and overcrowding. The young fledge after 5-15 days. G. guira feeds on insects and other arthropods, but also worms, frogs, small lizards, bird eggs and nestlings, etc.