Causes of a detached retina. Retinal detachment usually begins with a retinal tear, or hole in the retina. When a small hole or tear occurs, fluid from the eye can seep into the space between the retina and the back of the eye, which peels the retina away further. When the retina is detached from the back of the eye, it cannot function.
The true parrots include many of the familiar parrots including macaws, conures, lorikeets, eclectus, African gray parrot.January 2014). True parrots have a beak with a characteristic curved shape, the jaw with a mobility slightly higher than where it connects with the skull, and a generally upright position.
Small parrots - Budgies live from 17-18 years. A finches average lifespan is 5-10 yrs, while a canaries is 10-15. Cockatiels can live from 15-20, Lovebirds 10-15, and Parrotlets 10-15. Medium parrots - Conures live from 12-30 yrs, Caiques up to 30, and Lories/Lorikeets 13-25. Large parrots - African Greys live from 50-60+ yrs, Amazons 50-70+, Cockatoos 40-60+, Eclectus' 65-85, and Macaws 50-100+. These are just average estimates for parrot lifespans and won't always be accurate.