Red-rumped Parrot (Psephotus haematonotus), male. Also known as Grass Parrot. A medium sized parrot of about 28cm in length mainly a seed feeding parrot, similar to the Turquoise Parrot in colouring but has a red rump on the lower back just above the tail feathers. Hard to see the red-rump unless it is flying. This guy was feeding on Dandelion Seeds.
You can just make out the red between the end tips of the folded wings:
D810 + 400 f2.8 + 1.4x TCIII, 1/1250sec, f5.6, ISO6400 handheld.
D810 + 400 f2.8, 1/400sec, f4, ISO1400 handheld
D810 + 400 f2.8, 1/400sec, f4, ISO1400 handheld