The Australian warblers are almost always active, typically hopping on the ground or among the foliage of trees or bushes. Some species, especially the bristlebirds, can be quite cryptic. Breeding pairs are territorial in the breeding season, with many species joining flocks outside the breeding season. Thornbills, scrubwrens and gerygones are often nuclear species of mixed species feeding flocks in a wide range of habitats. Almost all species are sedentary or at most show very local movements, whereas the white-throated gerygone (Gery-gone olivacea) migrates into southeastern Australia in spring. All species, except the gerygones, are rather weak fliers. A few species cock their tails. Many species have twittering calls and songs, though the wavering, downward warbles of the gery-gones have earned them the name of bush canaries. The heathwrens and fieldwrens are also noted songsters and several species include mimicry in their calls.

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