Well, there isn’t really any difference. A wild dog in Australia is defined as a dingo (Canis lupus dingo), feral domestic dog (Canis lupus familiaris) or a hybrid between the two.
Dingoes first came to Australia approximately 4000 years ago, while domestic dogs arrived with European settlers in 1788. Since the arrival of the domestic dog, crossbreeding has resulted in dilution of dingo genes, which has lead to a much smaller proportion of pure dingoes in Australia. Wild dog/dingo hybrids are very similar in appearance to pure dingoes therefore DNA is the only way to determine if a dog is a wild domestic dog, a hybrid or a dingo. Today, wild dogs are found in most environments throughout Australia.
This picture was taken at the weigh bridge at the quarry. What a beautiful dog in excellent condition! Thanks to the staff at the quarry for helping me by taking photos when they see dogs.