Lovebirds are another popular small species. They are very charming and pretty as well. There are eight species of lovebirds, but the most common and popular are peach-faced lovebirds which are available in a variety of colors. Like budgies and cockatiels, lovies are highly domesticated. Lovebirds love to hang out in your shirt or shirt pocket. They are four to five inches long and loaded with spunk. Lovebirds are generally hardy and easy to care for and usually will live ten to fifteen years. Lovebirds earned their name because a pair will sit side by side happily chattering. If you can't spend a lot of time with your lovebird, it would be better for her to have a companion.