Blue-crowned Parakeet
Thectocercus acuticaudatus
The blue-crowned parakeet is a medium-sized bird measuring approximately 37 cm (14.5 in) in length and weighing between 140 and 190 g (4.9 and 6.7 oz). Blue-crowns are born with red coloring around the head, but blue-crowns are predominantly green, with dull blue coloring on the forehead, crown, cheeks, and ears in the nominate, but less blue in other subspecies. It has a ring of white featherless skin around each eye, though this is bright orange-yellow in wild T. acuticaudata neumanni. The breast feathers may also be tinged with blue, though they are more commonly green to yellow-green.
ID text from Wikipedia, CC BY-SA 4.0
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
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: Blue-crowned Parakeet and Mitred Parakeet.