- Estimated around 398 species of parrots worldwide.
- Some species have extremely large populations (like Budgerigars, estimated at 170 - 240 million), while some are critically endangered (like Spix's Macaw, with only a handful of individuals left in the wild).
Largest Populations:
- Budgerigar (Melopsittacus undulatus): Estimated to have a global population of 170-240 million individuals. Native to Australia, they have also established feral populations in many other countries.
- Rose-ringed Parakeet (Psittacula krameri): Found across South Asia and parts of Africa. Highly adaptable, with a substantial population in urban and rural areas, estimated in millions.
- Red-masked Parakeet (Psittacara erythrogenys): Native to South America, their population is not precisely known but considered regionally abundant, with large flocks observed in some areas.
Critically Endangered Species:
- Spix's Macaw (Cyanopsitta spixii): Originally from Brazil, there were only two known individuals left in the wild as of 2020. However, successful breeding programs have led to a gradual increase in their numbers.
- Lear's Macaw (Anodorhynchus leari): Found in the Caatinga region of northeastern Brazil, their population was once under 100 individuals in the wild. Conservation efforts have led to slight recovery.
- Hyacinth Macaw (Anodorhynchus hyacinthinus): Native to central South America, their population is still considered endangered but has been improving due to conservation efforts.