Turquoise-fronted Amazon
Amazona aestiva
The blue-fronted amazon is a mainly green parrot about 38 cm (15 in) long. They have blue feathers on the forehead above the beak and yellow on the face and crown. Distribution of blue and yellow varies greatly among individuals. Unlike most other Amazona parrots, its beak is mostly black. There is no overt sexual dimorphism to the human eye, but analysis of the feathers using spectrometry, a method which allows the plumage to be seen as it would be by a parrot's tetrachromatic vision, shows clear differences between the plumage of the sexes.
ID text from Wikipedia, CC BY-SA 4.0
Yellow-crowned Amazon
Amazona ochrocephala
Subspecies in the nominate group (including subspecies xantholaema, nattereri and panamensis) have a total length of 33–38 cm (14–15 in). As most other amazon parrots, it has a short squarish tail and primarily green plumage. It has dark blue tips to the secondaries and primaries and a red wing speculum, carpal edge (leading edge of the wing at the "shoulder") and base of the outer tail feathers.
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: Turquoise-fronted Amazon and Yellow-crowned Amazon.