Over the years, I have become increasingly popular as a pet because of my intelligence and beauty.  I have tame and affectionate characteristics.

I am found in many sizes ranging from about 20 inches to no bigger than 9 inches.  I come in all different colors from lush green to a brilliant yellow.  Red, blue, orange, brown, and white all serve to highlight me.

My natural habitat ranges from Mexico and Central America to the Caribbean Islands and South America.  I am sometimes referred to as a small version of the macaw: its shape is slender, and its tail is tapered and graduated.  I have a very high-pitched voice, and am capable of learning a few words.

What species am I?