Zooming in I discovered, to my delight, that it was a Tawny Frogmouth in its daytime camouflage of a dead stick. This pose is so perfect that I would not have been able to discern the difference without the zoom.
The Field Guide to Australian birds says this:
Probably the best known Australian nocturnal bird; occasionally seen in camouflage pose on an exposed limb,stiffly posed to mimic a broken branch. The streaked and mottled plumage looks like old weathered wood or bark, the bill and bristles like the jagged end of a broken branch, and the untidy white spots and dark streaks are like lichens and sap stains on old timber. Yellow eyes look through narrowed slits; the head turns almost imperceptibly to follow an intruder's movements.
I couldn't agree more.
You are being observed