Dusky Woodswallow (Artamus cyanopterus). I couldn't get much closer, but they spent ageeees preening each other and I got several very cute shots of this pair. If you think that they don't look quite right for a swallow you won't be surprised to read that they are actually more closely related to currawongs and Australian magpies than they are to swallows.
I even managed to see a nest, bowl-shaped and made of twigs, tucked behind a bit of bark. No photos though as I didn't want to bother the birds.