The conservation regulator is investigating a possible case of animal cruelty in Hoppers Crossing where a number of magpies have been found with chains around their necks and caged legs.
Five to 10 birds have been affected, with several found dead and another having to be euthanised after dehydration and malnourishment left it unable to fly.
The birds were found with metal and plastic tags which inhibit their ability to fly, escape predators and feed.
The magpies were not all found together, but the conservation regulator is investigating if the cases are related and is calling on the public to come forward with any information.
Tagging native birds is illegal in Victoria unless authorised and only specific types of tag can be used.
The size and location of the tags found on the magpies were not legal.
Those found guilty of aggravated animal cruelty in Victoria can face up to two years in jail or a fine of $92,460.
Body corporates can be fined a maximum of $221,900.
Anyone with information about these incidents or other cases of wildlife crime is urged to contact Crime Stoppers Victoria on 1800 333 000.
