The rest of its body is covered in deep bottle green feathers and a wide band of yellow color runs down to the tip of its tail.

These birds average about 40 cm in length and can weigh between 550 and 650 g.[4] The red-necked amazon is only found in the Caribbean island of Dominica.

The Jacos primarily eat flowers, sprouts, seeds and fruits of the rainforest trees and plants, citrus and pastoral crops.

Other than early morning and afternoon calls, these birds are fairly quiet and difficult to detect in the wild because they are well cloaked by their fluff.

[6][7] Red-necked amazon numbers have been diminishing through the 20th Century, primarily as a consequence of hunting for food and, to a lesser degree, the pet trade, and, more recently, by the clearing of forests for agriculture.