Police said the emu killings occurred this month in northwestern Victoria.
About 20 seconds later, the video shows the auto approaching a mob of emus which are running away from the vehicle.
The video was posted to social media, causing wide spread disgust and condemnation.
"Such horrific cruelty has no place in our society", the animal welfare organization said in a statement, urging people to identify the man. (Supplied) The man counted as he mowed the helpless birds down.
In the video, the male driver is heard cheering as he strikes the birds on a dirt road with his auto.
"Got that one too, and that one". More than 10 emus appear to be hit and left for dead.
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The South Australian RSPCA asked that those concerned about the video avoid publicly shaming suspects before charges had been brought.
Ms Jones said tagging and identifying people through social channels and the media won't necessarily bring the offender to justice. A NATIONWIDE search is underway for a man who filmed himself laughing hysterically while lining his 4WD ute up with a flock of emus and mowing them down on a dirt road somewhere in Australia.
He is due to face Ouyen Court on November 9.
"This is f--ing great", the man is heard saying in the video about the attack on the birds, which a spokeswoman for an animal protection agency later described as "sickening cruelty".
Victoria police announced Friday that they had arrested a 20-year-old suspect in connection with the incident. "In one video, he was using a calf on top of his leg to do leg-stretching exercises", the spokesman said.