Whistling Kites seem to check out the area for prey items but do not come into town anymore. I guess their food items have also been reduced to small pockets outside of town. These Whistling Kites were not observed catching anything whilst being recorded on video.
Raptors, like the Whistling Kite, and nocturnal predators like the Tawny Frogmouth are generally seen during very late Summer to the end of Autumn in the area. Whistling Kites' main diet is mammals, birds, insects and fish as well as carrion (dead animals). They do this by soaring above the landscape. They can also be seen circling certain areas where there might be food that they have spotted.
Here are some screenshots from the video my brother took of these magnificent birds.
Plus two cropped and enlarged photos of the bird:
And here is the video: