The introduced Indian Myna looks similar to the native Noisy Miner, and the two species are sometimes confused. Both birds are similar in size, distribution, and behaviour. Both have black heads, yellow eye patches, yellow beaks and yellow legs.
The main difference is their body colour. Indian Mynas have a brown body, whereas Noisy Miners have a grey body. Indian Mynas also have a distinctive white patch on their wings,which is also visible when they are in flight.
This short video from Birdlife Australia helps explains the difference: What bird is that? Myna vs. Miner

Image of an Indian Myna bird

Image of a Noisy Miner bird. Image credit Bird Advocacy Foundation.