City of Greater Bendigo parks and natural reserves staff have installed a large nesting box in the park in the hope of attracting a pair of Ninox strenua, or powerful owls.

Parks and natural reserves manager Simon Harrison said suitable natural nesting spaces were in short supply.

"The nest boxes are designed to replicate this habitat requirement and are large enough to accommodate two adult birds and their young," he said.

Mr Harrison said the birds would act as a natural control on the number of possums and other animals in Rosalind Park.

"As an apex predator, the powerful owl is a hunter to many and prey to none," he said.

City of Greater Bendigo park ranger Miles Geldard said powerful owls were increasingly moving into suburban areas.

"Homeless owls cannot always wait for the formation of natural hollows in which to raise their offspring and we are hoping to provide the owls with a home so that one day they can be removed from the threatened species list," he said.

"It is often through landscape scale conservation efforts such as this that positive results are achieved."

Nest boxes have also been installed in trees in Strathfieldsaye and at Crusoe Reserve in Eaglehawk in an effort to attract powerful owls to those areas.