The long-tailed parakeet (Psittacula longicauda ) or Burung Bayan Nuri in Malay is a parakeet endemic to the regions of Andaman and Nicobar islands, Sumatra, Borneo and Peninsular Malaysia (including Singapore). It is allopatric with the congener, the Red-breasted parakeet, Psittacula alexandri, except in the Andaman islands where they occur together.
It is mainly green with a long blue tail. The male has a black cap and red face. The female lacks the black cap and has less red.
The long-tailed parakeet is able to live in a wide variety of habitats such as in swamp forests, lowland evergreen forest, oil palm plantations, coconut plantations, gardens, public parks, and is a frequent visitor to agricultural areas (especially those who yield tropical fruits and seeds). It is usually seen in elevations of up to 300 meters.
Much of the long-tailed parakeet's natural habitat is threatened by deforestation and illegal logging. Capture for the illegal pet trade is also a threat to the survival of this species.