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Kimberley collars judas donkeys

collaring a feral donkey

Mick Everett from AGWEST fits a donkey with a tracking collar. The donkey can then be tracked to locate other animals
Photo: Andrew Johnson

THE adaptation of modern tracking technology, including solar-powered devices has proved a boon for a major program to eradicate feral donkeys in the southern Kimberley.

The Judas program, begun in 1994, achieved a major milestone recently when it reached Bow River station 150 kilometers from Kununurra. Over the last several years the program has expanded to include 38 pastoral leases, two major reserves and the Bungle Bungle National Park.

This encompasses an area half the size of Victoria. AGWEST's Andrew Johnson said coordinated control of feral donkeys has been under way since 1978. The program has evolved from using broadscale shooting to utilising the latest wildlife tracking technology for feral animal control.

This has reduced the population of feral donkeys and horses in the Kimberley by over half a million animals since the 1970s.

What has become known as the Judas technique involves placing VHF radio-transmitting collars on donkeys, which are tracked via the radio signal once a month. "Other donkeys then found with the Judas donkey are humanely culled, leaving the Judas donkey so that it can help locate and pinpoint other donkeys in the area," Mr Johnson said.

"More than 270 radio collars have now been fitted across the southern Kimberley, which means we are over the halfway mark for the project, taking into account the total area occupied by feral donkeys."

A pastoral station is gradually cleared of donkeys over a two to three-year period. The station is then assessed for a non-breeding population of donkeys after strict criteria have been met.

"The reduced grazing pressure resulting from the removal of feral donkeys in the Kimberley has enabled pastoral business to use greater areas of country," said Johnson.

The project is 20 per cent funded by the pastoral industry and the majority of funding by the Agriculture Protection Board.