Habitat

Magpie-shrikes occur in wooded habitats that vary according to the foraging niches of the birds. Bristleheads occupy the mid-strata of mature, lowland alluvial (relating to river and lake systems) and swamp rainforests, while peltopses in New Guinea live on the edge of the canopy in both mature and regrowth rainforest. Currawongs are as much scansorial (adapted for surface-foraging) as arboreal (tree-dwelling) in their feeding and work over foliage, branches, bark, and ground in habitats ranging from dense, tall, wet forests to open, low, eucalypt-dominated woodlands. Australian magpies occupy even more open habitat, centering on savannas and pastures, whereas the wholly arboreal butcherbirds occupy the middle and upper strata of forests and woodlands. Butcherbird species coexist in any one region by partitioning their habitat. The black butcherbird and New Guinean members of the black-hooded groups occur in rainforests, the former at all strata within mature forests and in mangroves, and the latter in the middle and upper strata at forest edges and in secondary growth. In Australia, the three gray-group species occupy drier eucalypt forests and thickets, replacing one another in different parts of the continent. Where it overlaps them, the Australian member of the black-hooded group (Cracticus nigrogularis) keeps to more open woodlands.

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