The deaths of more than 100 little corellas at Barmah on Wednesday, June 1 is being investigated by Victoria’s Conservation Regulator.
The regulator is responsible for the regulation of timber harvesting, fire prevention, use of public land, wildlife and biodiversity.
“The Conservation Regulator is working to determine if the deaths were caused by a disease or as a result of human actions,” a spokesperson said.
“Anyone with information about this incident or cases of wildlife crime is urged to contact Crime Stoppers Victoria on 1800 333 000.”
Native birds can be attracted to poisoned grain, intended to kill rodents, which can cause large-scale deaths of birds.
The regulator is also aware that disease, including Psittacine beak and feather disease, has been a cause of previous native bird deaths in Victoria.
Killing wildlife by poison is an offence under the Wildlife Act 1975.
A person found guilty can receive penalties of up to $18,174 and/or six months in prison.