There are many, many colors of lovebirds, nine of which are natural species, native to Africa. The rest are color mutations effected by breeders. There is no difference in personality, just color. They are a happy, cavorting little bird who would rather whistle and chatter than talk human, but; some do learn human language when there is only one.
The common misconception about companion lovebirds is that they love their humans and need to be kept in pairs. Well, almost but; not quite. If you have one lovebird, it will bond to you, its human companion. If you have two, they bond to each other and can become quite scrappy and aggressive with people, because they love each other. Unless you are planning to breed them, selecting one is the best scenario for these little cuddlers.
These little guys/gals live up to 15-25 years of age under well kept circumstances. Their diet should consist of a good, smaller pellet, some seeds (Niger, silver millet-not millet spray, flax, and oats, as well as fresh fruits and veggies. They are very susceptible to illness from drafts, so make sure they are far enough away from the chosen window that draft does not affect them. Other than that, they are the most disease resistant bird on the planet.
Their cage should be about 30” x 30” x 18” with plenty of horizontal bars spaced no more than ½ inch. They love room to romp, so the bigger the cage, the better. They love TOYS, TOYS, TOYS, but; become bored rather quickly, so toys should be rotated every month or so to prevent boredom and Toy Bonding