Most have their preferred habitats, so you get to know which ones you may see where. These are some of the raptors of the Broome region that we saw during our recent trip there.
The Brahminy Kite, basically a bird of coastal areas, especially the mangroves along the coast in northern Australia. This one appears to be going through a moult.
Another raptor of coastal areas and large rivers is the wonderful White-bellied Sea-Eagle. The adult is a beautiful crisp white with a grey back and wings, but this juvenile still has lots of brown on him. Judging by the bulge in his throat, he also has a full crop, so he's doing well.
A common bird of prey that is often found on the dry open plains is the Brown Falcon. They usually swoop down on small animals, but I have also seen these guys running around bushes like chickens, chasing small reptiles.
One of my favourites is this Black-breasted Buzzard, which is usually identified by it's white windows on the wings. This was a young bird being given a hard time by a bunch of annoyed White-breasted Woodswallows, who spent a lot of time diving on his back.
One of the most common raptors of the dry arid regions of Australia, a Black Kite. These guys feed in most habitats and it's not uncommon to see dozens of them riding the thermals high into the sky. Towns, rubbish dumps and sewage ponds are often good places to see them.