[1] Although they have been observed in the wild in Puerto Rico, they are probably the result of escaped pets, and no reproduction has been recorded.

They are frequently housed in aviaries with other species of their genus, a practice which although can be convenient, and wonderfully aesthetic, may lead to hybridization.

It may be advisable to house lovebirds either by themselves, or if a mixed collection is desired, ensure they are kept in a large flight with a few feeding stations, and assertive species e.g. red-rumped parrot, kākāriki, rose-ringed parakeet or cockatiels.

There was a mixed flock of masked, peach-faced lovebird, and a few hybrids near Napier, New Zealand for a number of years in the mid-2000s.

There is also a small feral population in France, which contains the Blue mutant, and mixes with larger proportion of Fischer's lovebirds - also from aviary origin.

Natural perches in the form of branches are ideal, especially if they have a variety of forks, angles, and a bit of bounce in them.

These bonds are artificial and can be broken, or tested if the "pair" are re-housed communally (or split up by the keeper).

One or both of a pair of males may go, and breed with lone hens, despite staying connected to their original partner.

In the case of the lutino, the micro-structure which creates the blue based colours in the normal form is not passed on to offspring when it arises; hence, the parrot is orange around its face and yellow everywhere else.