Ring-billed gulls can be seen year-round  They are distinguished from similar gulls by the ring around their bills and their yellow feet. Like the laughing gulls, ring-billed gulls nest in colonies and usually on the ground, and the females lay about three light brown to olive tinted eggs with dark marking that hatch in about three weeks. These gulls, found throughout the United States, eat the eggs of other birds, insects, and food from garbage.