Brown-throated Parakeet
Eupsittula pertinax
The brown-throated parakeet is 23 to 28 cm (9.1 to 11 in) long and weighs 76 to 102 g (2.7 to 3.6 oz). The sexes are alike. Adults of the nominate subspecies E. p. pertinax have a yellow forehead, face, and chin. Their crown, nape, and upperparts are green. Their breast is dull olive and their belly grass green with an orange patch in its center. Their wings are mostly green with dullish blue edges and tips on the flight feathers; their tail feathers are also green with dullish blue edges and tips. Immature birds have very little yellow. The other subspecies differ from the nominate thus: E. Voice: The brown-throated parakeet is very vocal. Its flight calls "include high-pitched screeching and harsh grating 'scraart scraart' cries, rapidly repeated." It also makes "shorter, bisyllabic 'tchrit tchrit' and 'cherr cheedit'" calls, and from a perch "similar calls and chattering notes.
ID text from Wikipedia, CC BY-SA 4.0
Olive-throated Parakeet
Eupsittula nana
The "Jamaican" olive-throated parakeet E. n. nana is the nominate subspecies; it is 22 to 26 cm (8.7 to 10 in) long and weighs about 72 to 85 g (2.5 to 3.0 oz). The "Aztec" olive-throated parakeet is 21.5 to 25 cm (8.5 to 9.8 in) long and weighs about 85 g (3.0 oz). The sexes are alike. Adults of the nominate subspecies have a mainly dark green head and upperparts with yellowish ear coverts and rump. Bare white skin surrounds their eye. Their throat and breast are olive-brown that becomes olive on the belly and vent. Voice: The olive-throated parakeet's vocalizations differ little among the subspecies. Their calls are "a sharp, grating "krik-krik-krik-krik" or raucous "krrieh krrie krreah"."
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: Brown-throated Parakeet and Olive-throated Parakeet.