B Fraser,
WWII aeroplanes vs Warbirds ...
This subject has been argued at length elsewhere - and there are indeed a couple of grey areas.
It is generally accepted that a Warbird is an aircraft that was specifically designed and produced for military purposes - whether it be a trainer or front-line fighter.
A WWII aeroplane, on the other hand, can be any aircraft that was impressed for service during that time of war.
Others might argue but here is probably not the place to do it.
