Mitred Parakeet
Psittacara mitratus
The mitred parakeet is 31 to 38 cm (12 to 15 in) long and weighs 219 to 275 g (7.7 to 9.7 oz). The sexes are alike. Adults of all subspecies are mostly green with a purplish forehead and a variable amount and pattern of red on the face. All subspecies have a red forecrown and red in front of their eye. The red usually extends past the eye and down the cheeks, and is often just flecks on the ear coverts. Subspecies P. m. chlorogenys has less red around and below the eye than the others, often a blue tinge on the crown, and some red on the thighs. Voice: The mitred parakeet is very vocal, especially in flight with "a continuous loud screeching chatter". It also makes nasal "queaky notes and screeches".
ID text from Wikipedia, CC BY-SA 4.0
White-eyed Parakeet
Psittacara leucophthalmus
The white-eyed parakeet is 32 to 35 cm (13 to 14 in) long with a 37 to 40 cm (15 to 16 in) wingspan. It weighs 100 to 218 g (3.5 to 7.7 oz). The sexes are alike. Adults of all subspecies are mostly green that is paler on their underparts. They have red flecks on their head and neck. The bend and edge of their wing and their outermost lesser underwing coverts are also red. Their outermost greater underwing coverts are yellow. The undersides of their flight feathers and tail are olive. Their eye is orange surrounded by bare white to yellowish white skin and their bill is horn colored. Voice: The white-eyed parakeet is very vocal, especially in flight with "a grating chattering interspersed with higher-pitched shrieks" described as "r'teet-r'teet-tiw-". It also makes "harp squeaky notes and loud harsh calls" described as "scree-ah".
ID text from Wikipedia, CC BY-SA 4.0

Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Mitred Parakeet and White-eyed Parakeet.