East Metropolitan Regional Council (EMRC), which runs the waste facility, has applied to clear the vegetation under the federal Environmental Protection and Biodiversity Conservation (EPBC) Act.
The environmental report says clearing of the foraging habitat area will have "some impact on the Black Cockatoo populations that may use the area for feeding".
This includes the endangered Carnaby's Black-Cockatoo.
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READ NOWHowever, during the on-site environmental study " a three-hour visit " no threatened birds were observed and only signs of past eating were found.
EMRC needs to acquire another area of native vegetation to protect to offset the environmental impact of the jarrah-marri bushland clearing in the proposed landfill area.
The regional council has proposed to protect bushland next to the site, which is used as a buffer zone for the waste management facility.
EMRC chief executive Peter Schneider said the site was picked because it is already vegetated in flora which is similar to that being cleared.
"It is an area that has majority remnant vegetation and is connected to John Forrest National Park," he said.
"Ecological surveys showed the offset area has better breeding and foraging habitat value to the black cockatoo than other areas, including the proposed area to be cleared."
EMRC proposes 12.1ha of this area be protected to meet Department of Environment Regulation requirements, and the remaining 52.5ha be set aside to meet offset requirements under the EPBC Act.
The Red Hill facility sits on 352ha of land and 166ha of this can be filled with waste.