The imperial amazon (Amazona imperialis), also known as the sisserou, is a parrot found only on the Caribbean island of Dominica, specifically within the 90 km2 (35 sq mi) of mountainous rainforest near the Morne Diablotins and the Morne Trois Pitons National Park.
The imperial amazon is endemic to the Caribbean island nation of Dominica in the Lesser Antilles where it inhabits mountain forest areas above 2,100 ft (625 m). Only a small population of less than 100 birds of this species have survived natural disasters, habitat loss and the pet trade. It is the island’s national bird. The species frequently occurs in the Morne Diablotins in northern Dominica, especially the upper Picard River Valley on the northwest side of the mountain. A small population has been reintroduced in the Morne Trois Pitons National Park.
Imperial amazons are found primarily in mountain rainforest, sometimes in elfin forest. They occur mostly at elevations of 600–1300 m above sea level. However, there have been reports of them at 150 to 300 meters in elevation because of food storage or foraging preferences. source