The Ring-billed Gull (Larus delawarensis) shown here at Fall River, Massachusetts, is close to a parking lot, and a café. Smaller and more slender than Herring Gull with thinner bill. There is a red ring around the eye like in the lesser black-backed gull but unlike in the herring gull which has a dark yellow ring. They also support the populations of small predators that prey on them. The ring-billed gull (Larus delawarensis) is a medium-sized gull.The genus name is from Latin Larus which appears to have referred to a gull or other large seabird. While the species is common on coastal beaches, particularly during winter, many Ring-billed Gulls lead inland lives, never setting eyes on the sea. there are 17 different types of sea gulls found in the United States, 45 found worldwide. This gull is common here in winter; ring-billed gulls are more common in summer. Any bird that’s can take advantage of humans to improve their own fortunes deserves our respect. First-winter Herring Gulls are much browner, but second and third-winter birds can be confusing since soft part colors are variable and third-year Herring Gull often show a ring around the bill. Comfortable around humans, they frequent parking lots, garbage dumps, beaches, and fields, sometimes by the hundreds. The breeding biology of the Ring-billed Gull is well known and the history of its populations during the last century well documented. Kelp Gulls are Omnivorous, Larius Gulls are too. Most are omnivores, but a large part of their diet is made up of fish and aquatic invertebrates. Even though they are often called "sea gulls" - they can also be found far from the sea. Ring-billed gulls compete with other gull species for food and have been observed stealing food from starlings. They have a red spot on the bill as adults, like the entire complex. It is also a regular visitor to Western Europe. They have short legs, webbed feet, and short bills. Adult Herring Gulls are similar to Ring-billed Gulls but are much larger, have pinkish legs, and a much thicker yellow bill with more pronounced gonys. The … The Ring-billed Gull is an omnivore whose diet varies with location and season. Often in flocks sitting on ground or flying between roosting and foraging sites. The Ring-billed Gull (Larus delawarensis) is a medium-sized gull with a large natural range that encompasses both North and Middle America. Its diet includes fish, insects, earthworms, grains, rodents, and garbage. A black band around its yellow bill distinguishes adult ring-billed gulls from other gulls. They affect the populations of the animals they prey upon. A few are Laughing Gull, Herring Gull, Swallow-tailed Gull, and Ring-billed Gull. Ring-billed Gulls are scavengers, so they often consume foods that would otherwise go to waste. They also support the populations of small predators that prey on them. In this article we will compare and contrast only the adult plumage birds. And these omnivores are crafty: Some have learned to stamp their feet on the ground to imitate the sound of rain to coax tasty earthworms to the surface. Ring-billed Gulls are medium sized, white-headed, primarily inland-nesting North American gulls that frequent garbage dumps, parking lots, and southern coastal beaches in large numbers during winter. These gulls are omnivores, eating fish, insects, worm, rodents, grain and even garbage, like French fries and other discarded human food. [/alert] Whatever your opinion is about these opportunistic omnivores they are quite handsome and clever for someone with a bird brain. While not so useful here, gulls have special glands that expel salt and allow them to drink seawater. ... Like most Larus gulls, they are omnivores … These are the gulls you're most likely to see far away from coastal areas—in fact, most Ring-billed Gulls nest in the interior of the continent, near freshwater. They have a red spot on the bill rather than the vertical dark ring of the ring-billed gull. Birds in this family are usually gray or white, often with black or gray markings. A black band encircling the yellow bill … They are large light-colored birds with darker wingtips, gray on back and white below. They differ in size, bill markings, mantel color, and wing tip appearance.