Two
subspecies are recognised: •
Azuero parakeet,
P. s. eisenmanni Delgado, JA, 1985 – south-central Panama (
Azuero Peninsula) •
Sinú parakeet,
P. s. subandina Todd, WEC, 1917 – northwestern Colombia (lower
Sinú River Valley); unrecorded since 1949 and possibly extinct The
nominate subspecies,
P. s. subandina, is only known with certainty from the
Sinú Valley in
northern Colombia.
BirdLife International estimates that if the bird is not already extinct, no more than 50 likely exist. Despite extensive searches, there have been no confirmed records of the parakeet since 1949. Scientists know very little about the Sinú parakeet's
reproductive physiology,
nutritional needs,
ecology, or
behavior. There are 18 specimens known from four locations in Colombia, two of which have been deforested. The parakeet is among the 25 "most wanted lost" species that are the focus of Re:wild's "Search for Lost Species" initiative. ==References==