Also referred to as Alex, Black, Fruit, and Ship rats, the Roof rat is generally found in warmer climates, such as along the Pacific Coast, Hawaii, and throughout the Gulf states. Roof rats are brownish-gray in color, and their undersides vary from gray to white. Roof rats eat seeds, fruits, vegetables, grains, and eggs, and water is non-essential, provided their diet is high in moisture. Unlike the Norway rat, they usually nest in upper portions of buildings.