The Mealy Amazon -
Amazona farinosa - is named (both English and scientific names) because its back looks as if it's dusted with flour.
One of the largest Amazons, it is native to lowland tropical forests of Central America and northern South America.
The nominal species of Mealy Amazon, Amazona farinosa farinosa, is native to north-eastern South America from Colombia to eastern Brazil.
The Blue-crowned Amazon, also called Mealy or Guatemalan from Central America (Mexico to Honduras) is a subspecies of the Mealy Amazon.
Amazona farinosa guatemalae