The green parakeet (Psittacara holochlorus), is a medium-sized parrot that is native to Central America, from Mexico south to northern Nicaragua. These birds have established self-sustaining populations in some cities in South Texas in the United States. It is unclear if the US population are feral released birds or may be some wild vagrants which have moved north from Mexico. The green parakeet is usually nonmigratory, but will move sometimes to take advantage of food supplies.