It's scientific name is Vanellus Miles and it's also known as a Masked Lapwing.

https://birdlife.org.au/bird-profiles/masked-lapwing

"The Masked Lapwing is notorious for its defence of its nesting site. This is particularly the case after the chicks have hatched. Adults will dive on intruders, or act as though they have a broken wing in an attempt to lure the intruder away from the nest."