A NORTH Booval family awoke to the sight of 14 dead or badly mauled sheep and two aggressive dogs roaming in their back paddock yesterday.
A female staffy and larger male Bull Arab-cross somehow snuck through a fence in the early hours of Thursday morning, attacking every one of the sheep on the North Station Rd property.
Most of the sheep were dead when the owner discovered them later in the morning, with a few more having to be euthanised due to their extreme distress.
The lone survivor is being treated for injuries.
Police attended and shot both of the dogs due to their aggression.
The sheep owners, who asked not to be named, said it was the second roaming dog attack on the property in about 12 months - with a similar incident taking place about the same time last year.
"Last year two staffies killed our ram," the property owner said.
"We think that this time they have pushed into the paddock under a timber fence down the back."
The family is not alone, with nearby resident John Raatz losing five sheep and 10 chickens in two separate dog attacks in early 2011.
The two dogs involved in yesterday's attack were not wearing collars or tags and did not have microchips, however it was thought that both had been desexed.
Ipswich City Council health and community safety spokesman Andrew Antoniolli said council was holding onto the deceased dogs in the hope of tracking down the owners.
"The owners of the livestock and responding authorities were faced with a very grisly and horrific scene," Cr Antoniolli said.
"We will be working with the owners of the livestock and police to determine ownership of the animals concerned."
Council is also calling on members of the public to assist in the investigation.
Cr Antoniolli said the incident was another sobering reminder for dog owners to make sure their pets were well secured.