A margarine tub with drainage holes makes a great alternate nest. The substitute nest may be placed anywhere in the vicinity of the original nest, i.e. in a nearby tree or a lower branch of the same tree. In most cases, the parent birds will find the babies and continue to care for them, locating them by their vocalizations, not by their smell. This means that they may lay several sets of eggs, and raise several clutches of babies, based upon their perceptions of the weather and available food supply. Adult birds do not use their nests year-round.
Nests are only for the raising of their young.
Once the baby season is over, the nests are abandoned. Often, however, adult birds will return the following year to either the same nest or the same area to begin the cycle anew. While some of them do eat worms, many others eat only vegetation, seeds from native plants or bird feeders, flying insects, fruits or nectar. Many others eat a combination of all of the above. The shape of a bird's beak determines what its diet will be.