A very tricky one Hix ! The pair between the branches ( Red-bellied Parrots ? ) I discovered quite fast but the other pair ( Meyer's Parrot ? ) are very well camouflaged !
But I didn't spot them in real life! I heard them chattering away but couldn't see them (my binoculars were broken) and something else drew my attention, so I took a photo of the general area on the trunk where I thought they were - that photo is zoomed in at 300mm. It was later wehen I was looking at it on my computer I could zoom in and see them - was surprised to find two pairs of two different species!
I normally compress the photos I upoad to this site, but I didn't compress this one so everyone can enjoy looking for them!