The mating urge of lovebirds can also be stimulated by furnishing good nest boxes. Make the entrance of nest boxes big enough so that the birds don't lose their building materials when entering the nest. They seldom pick up lost building materials, which means much wasted effort. The entrance should have a diameter of about 2 inches (5cm) 3 inches (7cm) for peach-faced lovebirds. The peach-faced lovebirds seem to prefer boxes that have the entrance in the left or right upper corner, which give them more privacy during breeding.

The basic material to furnish is fresh branches from fruit and willow trees, or from birch, mountain ash, linden, and poplar. You should provide fresh branches year-round. Keep the branches from drying out by placing them in water. The lovebirds will tear off bark strips to build their nest. Even when they seem to have completed the structure and have commenced laying eggs and breeding, they will still continue to build their nest. Lovebirds particularly like to have bundles of branches hung high near the roof of the aviary. If you throw branches on the ground, they will arouse very little interest.

For other materials, furnish grass, leaves, and bundles of spray millet. Present these in racks hang at a height of about 4 feet (120cm). Most lovebirds carry building material in the "normal" way, in the beak, but the females of the Abyssinian lovebird, Madagascar lovebird, and red-faced lovebird often tuck nesting material anywhere between the body feathers, and peachfaced lovebirds carry large strips of bark and such tucked between the lower back and rump feathers.