Rothschild (1905) described macaws from Guadeloupe as Anadorhynchus (sic.) purpurascens (based on the writings of Don de Navaret in 1838), and from Martinique, as Anadorhynchus (sic.) martinicus (based on the writings of Bouton in 1640), but there is no solid evidence that these differed from Ara guadeloupensis (the name of which has priority). A re-evaluation of the historical documentation and archaeological exploration are required to elucidate this (BirdLife International 2004).
Extinct: Great Auk: These auks were flightless penguins from the Atlantic. They were one of the largest auks standing about inches high. They had white and glossy black feathers, and were once seen in huge numbers in the northern frigid areas.
The largest bird to fly, Argentavis magnificens, was believed to have flown like a high-performance glider, according to experts. This bird was believed to have lived 6 million years ago in Argentina. It was close to the size of a Cessna 152 airplane.