Conservation status

The clearance of rainforest has eliminated southern lo-grunners from parts of the range; however, this species appears capable of persisting in small, isolated patches of rainforest. A population persists to the south of the metrop olis of Sydney, New South Wales, well separated from the northern section of its range, and a pair of birds was found in 5 acres (2 ha) of rainforest that had been long-isolated within a surrounding countryside of dairy land. The possibility that proliferating exotic plants, such as lantana and blackberry, in and around the rainforest might force this species from its habitat did not eventuate. The southern lo-grunner seems to have adapted well to thick stands of these plants, using their cover to colonize along watercourses and even moving away from rainforests into areas where these vigorously invading plants have made inroads into cleared land.

While clearing has undoubtedly reduced the habitat available to chowchillas, this species remains common in northeastern Australia. The New Guinea logrunner appears to be uncommon to rare, but this may be due in part to its shy nature and the remoteness of much of its range. Only in 1987 was it discovered at Tari Gap, central New Guinea, where it had long been thought to be absent.

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