The plumage of an adult lilac-crowned amazon is primarily green with yellowish underparts and black edging.

One difference is that the iris of juveniles is a dark brown as opposed to the amber colouring that is found in adults.

[4] The lilac-crowned amazon's endemic range spans along the pacific coast of Mexico, beginning in southeastern Sonora and southwestern Chihuahua down to southern Oaxaca.

[5] Based on a collection of data and resident accounts, Amazona finschi population range has decreased by 20% due to habitat loss.

[6] An increasingly growing population of approximately 100 individuals is found in Southern California, especially in the San Gabriel Valley and Orange Country.

[8] These populations often are found in residential areas and occasionally in nesting groups with red-crowned parrots in native conifer forests or non-native captive plants.