Adult Size: 17 and 20 inches, weighing 13 to 18 ounces. Life Expectancy: 30 to 50 years An individual measures 30 to 40 cm for a weight of 380 to 800g for the strongest. Family: Psittacidae. It is generally difficult to guess the age of parrots. However, the immature coloration is usually different from the adult plumage. Scientific Name: Eclectus roratus. The average lifespan of the eclectus parrots in captivity is unknown, since these birds were not kept in captivity in great numbers until the 1980s. Common Names: Eclectus parrot, Solomon Island eclectus parrot, Grand eclectus parrot, yellow-sided eclectus parrot, Vosmaeri eclectus parrot, blue-bellied eclectus parrot, red-sided eclectus parrot, dusky eclectus parrot. Lifespan/Longevity. Category: Parrot. This may have been due to … The maximum reliably recorded longevity for this species is 28.5 years, but a … Common Name: Eclectus parrot. Eclectus live solitary, in pairs or in small groups which are often composed only of males during the nesting period. Eclectus parrots are known to survive and reproduce for up twenty-eight years in captivity, and anywhere up to fifty years in the wild. The average lifespan of an eclectus is 30 years; but they should be able to live 50 to 75 years -- as is the case with comparably-sized parrots. Scientific Name: Eclectus roratus. The shortest lived eclectus parrots in captivity survived approximately eight years. Some sources consider the lifespan to be 30 years. Mostly active (and noisy!) It has an average lifespan of 25 to 30 years (and up to 50 years in captivity. LIFE SPAN: 30 years.