Dingoes are part dog, part wolf, a last remnant of Asia's ancestor to modern dogs. Their place in Australian folklore was secured by a sensational 1980's murder case involving baby Azaria Chamberlain, whose parents said she was taken by a dingo.

The animals range from here in the foothills of the rugged southeastern alps to the desert outback, preying on larger animals like kangaroos.

But environmentalists fear dingoes are at risk of extinction not only from farmers, but from interbreeding with ordinary dogs introduced by European settlers over 200 years ago, weakening their 3,500-year-old genetic line.

And while protected inside parks, World Heritage areas and Aboriginal reserves, dingoes to many graziers are a pest, savaging flocks already under stress from a 10-year drought.

"They absolutely torture them, they eat them alive, they'll just pull them down and just eat the back legs, hamstrings out of them, they'll eat the flanks out and tear the guts out and then they'll go on to another one," says Harley Hedger, who hunts dingoes and wild dogs on contract for angry farmers.

TRAPPING DINGOS

Burly government trapper Mick Clarke controls dingoes inside the zone. Conservationists say the strip buffers a mountain park sanctuary of near genetically-pure dogs, and keeps farmers and environmentalists from each others throats.

It is a charged job to make all sides happy.

Clarke, who respects his adversary, squats to lay a rubber-jawed trap before setting a white Cockatoo bird feather to sway in the breeze and draw in a curious dingo. Around the trap goes a square of sticks.

"The dingoes don't like to step on anything round. They step over the stick and bang, they hit the trap," Clarke says, drawing on 30 years of experience trapping wild dogs.

"Without seeing them I know where they live, what they like and even how big they are. The only thing I don't know before I catch them is their colour."

To help, Clarke has Jess, a grizzled dingo adopted as a pup to help control the impact of dogs on local sheep flocks.

"She's almost pure. When she goes bananas in the back of the truck I know where the wild ones are," Clarke says.

Every dog or dingo shot by Clarke is photographed, weighed and sent to researchers who track changes to dingo bloodlines.

By the early 1990s, around a third of all wild dingoes in Australia's southeast were crossed with domestic dogs. In 2004 dingoes were tagged officially as "vulnerable" to extinction.

That has not stopped Victoria state placing a A$50 (US$42) bounty on the heads of all wild dogs in a move critics say will speed their demise. Animal lovers accused the state government of pushing dingo populations to extinction.

The government argues the bounty will help eliminate feral dogs and foxes from parts of the state ravaged by bushfires in December and January, helping the recovery of farmland.

ROGUE DOGS

Some farmers support dingo sanctuaries, but others demand they be shot, trapped or poisoned, inside or outside protected national park borders.

"You've got the ones that will not allow any control on their property, right through to ones who will call for any measure, everywhere, anytime," Fletcher says.

But most problems, rangers say, are caused by rogue dogs or dingoes who for unknown reasons abandon traditional prey.

Those rogue dogs pose the biggest headache for Clarke, mainly because dingoes are also highly intelligent.