P. a. rubrirostris is a similar colour to P. a. margaritae but the head, breast and belly are a rather darker shade of green tinged with blue.

The male and female P. a. robertsi resemble P. a. aurifrons but the belly is a darker shade of green and the chin and throat brighter yellow.

Its typical habitat is among vegetation near rivers, on bushy slopes, among scrub, on rough grassland with cacti and brush and agricultural land.

[5] The mountain parakeet is a sociable bird and forages on the ground and in scrub for buds, berries and seeds of such plants as Fabiana densa, Lepidophyllum and Adesmia.

A clutch of three to six eggs is laid in a hole or crevice in a rocky outcrop, cliff face or river bank.