Difficult to identify from underneath - but - as it seems to be a daylight Moth - could it be a Burnet Companion - the colours would fit. Perhaps even one of the Hawk Moths. Looking at the red underwings - it could even be a Scarlet Tiger or a Jersey Tiger - their top wings are dark with white spots/stripes on them and their underwings are reddish orange.
I took this earlier on and thought it was quite amusing. A huge gang of crows were settling on the rooftop ready to fly off to their roosting place. The young seagull hovered and wandered around and between them, knowing something was going on, but not quite sure what, exactly. It looked all rather awkward.
I had a look at Grafton’s bridge. Decades ago when I used to drive through Grafton but never stopping I thought the bridge over the Clarence River was the daftest bridge I had ever come across, it was narrow with awkward turns at each end. What I didn’t realise was that underneath the road was a single track railway hence the awkward turns getting on and off the bridge.