The Swainson's (moluccanus) subspecies of "Rainbow" Lorikeet is one of the most numerous and, being the most brightly-coloured, is the one most people refer to as simply the "Rainbow Lorikeet", although in fact all Trichoglossus haematodus subspecies are "Rainbow" lorikeets and the "nominate" one (Trichoglossus haematodus haematodus) is the "Green-naped" subspecies. Swainson's Rainbow has a full bright blue head with red beak, a greenish-yellow
collar, orange/pink and yellow breast (no dark feather edges), bright blue stomach and green thighs. It comes from Australia, Polynesia (of course; all parrots should come from Pollynesia) and Indonesia.
Red, orange, yellow, green, blue and possibly indigo
The wings in flight
There are many other subspecies, not all illustrated here