Authorities believe that the deaths of the birds were caused by pesticides that were not allowed in the country for decades.
In September, 30 of these animals were brought to a veterinary hospital in NSW after they started to show symptoms of poisoning.
After hearing about the deaths, the residents of the area called the authorities to inform them about the situation.
They then conducted tests to identify the cause of the birds’ deaths.
The results of the tests revealed that the chemicals found in the bodies were used in banned pesticides.
Although the exact cause of the birds’ deaths is not known, the NSW EPA noted that they could have been affected by a natural disease, such as the black and white bird syndrome.
In 1987, Australia became the first country in the world to ban the use of DDT.
According to the WHO, the chemical can cause severe health effects and has been known to affect the central nervous system.
In 1994, the use of dieldrin was restricted. Then, in the following year, the government completely banned it.
The use of these two pesticides, which were deregistered several years ago, could result in individuals and companies being fined a huge amount of money.
The authorities have issued a stern warning to the public: Don’t use pesticides that have been deregistered. This practice is considered an offense and could result in heavy penalties.
It has been very distressing for the local community’s wildlife carers, who tend to sick magpies.