I now visit down to North Shore and a visit this afternoon provided a few aircraft I hadn't seen before:
Bell Long Ranger ZK-ICV c/n 45017) has not been featured on the blog previously. It is owned by Twin Coast Helicopters of Whangarei and wears their titles. It has been around since March 2007 and is ex C-GLBA and N5084F.
Cessna 172N ZK-ELU is registered to a North Shore owner but it is the first time I have ever seen it.
And another Skyhawk popped in briefly, 172M ZK-EFA is registered to a Coromandel owner and I believe is based at Coromandel airfield.