Mourning doves nest among the dense foliage of evergreen trees, certain deciduous species and vines. They may also build nests within artificial structures, such as the eaves and gutters of houses, or abandoned farm equipment. In the Western United States, it is common to find them nesting on the ground.
Mourning doves only build nests to shelter their eggs and young. When not raising young, they roost together in trees with no more protection than as provided by the foliage. Mourning dove nests are rather flimsy and not insulated for warmth. They are made up of twigs, grass, and conifer needles, and are about 8 inches across.