Mealy Amazon
Amazona farinosa
The mealy amazon has a total length of about 38–41 cm (15–16 in) and weighs 540–700 g (19–25 oz). Captives commonly are heavier. It is among the largest parrots in the Americas, mainly being surpassed by the large macaws. It has a relatively short and square shaped tail, as do the other members of the Amazona genus. The mealy amazon is mainly green. The back and nape often have a whitish tinge; almost as if it had been covered in a thin layer of flour ("meal"; hence its name).
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
Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Mealy Amazon and Yellow-crowned Amazon.