The nominate race of the Red and Blue Lory, Eos histrio histrio, is now history.
The lory shown here is the only remaining subspecies, the critically endangered Eos histrio talautensis of the Talaud Islands off Sulawesi, Indonesia.
Basically red and violet-blue
Violet-blue "ears" and violet-blue chest band
The violet neck -- but the "Violet-necked" is a different (related) species
Only the adults have the full blue headband.
Juveniles have only the blue eye-ear marking or a partial headband as it develops.