Pademelons and goannas are being hunted and killed with what is believed to be a crossbow at Mount Glorious, about 40 kilometres north-west of Brisbane.
This follows the deaths of at least five pademelons in the area, which were found with large holes through their bodies in the past month.
Mt Glorious resident Bethany Hope said the killings are "out of character" considering the community's affection for their wildlife.
An email from the Mt Glorious Community group ensures residents police and the RSPCA are on the case.