Rosenberg's Lorikeet is a "Rainbow" lorikeet, previously classed as a subspecies of T. haematodus.
It has a dark head flecked with blue, a very different wide bright yellow nape flecked with red, red breast with heavy black feather edges,
black stomach and pale yellow thighs with a little green flecking. The nape is quite different in appearance to the other Rainbow Lorikeets.
A deep orange bar on the open wing in Rosenberg's compares to a yellow bar on open wings of all other Rainbow Lorikeets.
Rosenberg's is native to Biak Island, Irian Jaya, Indonesia and is also known as the Biak Lorikeet.