Normal Peachfaced Lovebird. (Agapornis roseicollis)
Remainder of body a grass-green with the underside more yellowish green. Rump and tail-coverts are a bright light-blue. The bill is light horn colour and the feet greenish grey.
The most popular of the lovebird species, there are in Australia more than 60 colour mutations (variations) with many more in Europe and USA