The last known wild specimen of a Carolina Parakeet was killed in Okeechobee County, Florida, in 1904.
Incas died within a year of his mate, Lady Jane. It was not until 1939, however, that it was determined that the Carolina Parakeet had become extinct.
Turnaround video of a Carolina Parakeet specimen at Naturalis Biodiversity Center can be seen here.
The Carolina Parakeet was one of only two parrot species indigenous to the continental United States. The Thick-billed Parrot ranged across the American Southwest and Mexico in prehistoric times. By the 1920s it was pushed into Mexico where it still survives. The species currently is listed as Endangered, with less than 4,000 individuals. An attempt to reestablish the Thick-billed Parrot in Arizona during the 1980s sadly failed.
The Puerto Rican Amazon Parrot can still be found in the American possession of Puerto Rico, where it is listed as Critically Endangered, with less than one hundred individuals in the wild.