Dusky gerygoneThe dusky gerygone is a species of bird in the family Acanthizidae.It is endemic to coastal central and northern areas of Western Australia, from Shark Bay to Kunmuya.Its natural habitat is subtropical or tropical mangrove forests.DescriptionThe dusky gerygone is about 10-13 cm in length, with the upper parts grey-brown and tinged olive. The underparts are a greyish white, legs and beak are black.