Reproductive biology

Territorial groups usually consist of a senior pair and their offspring and siblings. Breeding may occur erratically year-round in New Guinea but is more limited to spring and early summer in Australian species. The senior pair carries out most of the nest construction. The female incubates and broods alone and is fed on and off the nest by others of her group. All members of the group help in feeding the nestlings, which fledge in about 20-21 days. Nests are rough bulky domes of twigs and fiber that are lined with fine vegetable fiber and animal wool. They are wedged in the upper branches of shrubs and small trees at 6.6-26.2 ft (2-8 m) above the ground. Rufous babblers in New Guinea usually suspend their nest at the ends of palm fronds. Eggs, in clutches of two to five, are pale gray and scribbled all over with fine dusky lines; they hatch in 16-23 days depending on species.

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