The tui parakeet (Brotogeris sanctithomae) is a species of bird in subfamily Arinae of the family Psittacidae, the African and New World parrots.

[4][5][6] The nominate subspecies of the tui parakeet is found in the Amazon Basin of extreme southeastern Colombia, eastern Peru, northern Bolivia, and Brazil east to the Rio Madeira.

[4] The tui parakeet feeds on fruit and blossoms from a variety of plants including palms.

The typical range of clutch size, the incubation period, the time to fledging, and details of parental care are not known.

The tui parakeet's calls include "a high-pitched “klee”, shrill “chree” or bisyllabic “chree-chree” [and a] fast chattering series “cra-cra-cra-cra-cra”."

[1] "Locally abundant with very little habitat loss, Brazil, and equally common within the limited areas occupied in Colombia, Peru and Bolivia.