Birds typically have a life expectancy of 10-30 years. The parrot family as a whole - including parakeets, cockatoos, macaws and cockateels - tends to live longer. These birds can have a lifespan of 70 years or more.
apprentice. 1  a person under legal agreement to work a specified length of time for a master craftsman in a craft or trade in return for instruction and, formerly, support. 2  a person who is acquiring a trade, craft, or skill under specified conditions, usually as a member of a labor union. 3  any learner or beginner; novice.
An apprentice might be a recent high school graduate or have worked at another occupation for several years. The important distinction is that the apprentice does not have sufficient training in his chosen field to work independently. A journeyman, on the other hand, has already served his apprenticeship. Depending on the trade, an apprenticeship lasts two to six years. During this time, apprentices acquire the knowledge and hands-on experience to complete job-related tasks.