What are the closest relatives to a lovebird?

Birds in the hanging parrot family are probably the closest livin relatives to the lovebirds, however, relationships between separate families in any group of animals is difficult, and conclusions are usually drawn from both DNA, physical and behavioural evidence. The relationship between these two groups is based mostly on nesting behaviour, as females in both groups will carry tuck material in their rump feathers to carry it back to the nest. However, while almost all hangnig parrots will display this behaviour, only a few species of lovebirds do. The relationship is tenuous, at best; hopefully someone will do a DNA comparison some day.