Piety - Etymology. 1  The word piety comes from the Latin word pietas, the noun form of the adjective pius (which means devout or dutiful). Pietas in traditional Latin usage expressed a complex, highly valued Roman virtue; a man with pietas respected his responsibilities to gods, country, parents, and kin.
Many people when they get a cockatiel want to know How Long Does A Cockatiel Live ?. The average lifespan of a cockatiel is around 12 years to 15 years. However, if you look after your bird well and ensure that it eats healthily, you can extend the lifespan of your cockatiel to even 20 years if not more. Cockatiels are quite intelligent and can be taught to whistle, imitate sounds and even speak.
You should not breed cockatiels until the male and female are at least 12 months old, with a preferable cockatiel breeding age of 18 months.  http://bananariveraviariesindex.home...ockatiels.8 month old Cockatiel= 20 yr old young adult.  http://www.asabirds.org/Cockatiels.htm Cockatiels will mature at about 8 months of age, but it is best to wait until they are at least a year of age to start breeding them. .