 In his 1907 book "Extinct Birds", the British zoologist Walter Rothschild instead claimed each island had its own species, and that the Lesser Antillean macaw was confined to Guadeloupe.In 1908 Clark reclassified the Dominican macaw as a separate species ("A. atwoodi"), based on the writings of Thomas Atwood.In 1967, the American ornithologist James Greenway wrote that the macaws reported from Guadeloupe could have been imported to the region from elsewhere by the native population, but this is difficult to prove.