Ecology
Their breeding habitat is deciduous woods from southern Canada to Mexico. They migrate to Central America and as far south as northern Argentina. This bird is a rare vagrant to western Europe.
These birds forage in dense shrubs and trees, also may catch insects in flight. They mainly eat insects, especially tent caterpillars and cicadas, but also some lizards, eggs of other birds and berries.
They nest in a tree or shrub, usually up to 2–12 feet (1–4 meters) above the ground. The nest is a flimsy platform of short twigs placed on a horizontal branch. The 3-4 eggs are incubated for 14 days or less. The chicks are able to climb about with agility at 7–9 days of age. At about this same time, the feathers of the chicks burst out of their sheaths and the young are able to fly. The entire time from egg-laying to fledging may be as little as 17 days.
Yellow-billed Cuckoos occasionally lay eggs in the nests of other birds (most often the closely related Black-billed Cuckoo), but they are not obligate brood parasites of other birds as is the Common Cuckoo of Eurasia.
Read more about this topic: Yellow-billed Cuckoo
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