The Common Gull, also known as the Mew Gull (Larus canus), is a medium-sized gull species found across a wide range of habitats in Europe, North America, and Asia. Adults typically measure between 16 to 18 inches in length, with a wingspan ranging from 41 to 46 inches. They weigh approximately 12 to 20 ounces, with slight variations between males and females. Distinguishing field marks include a relatively small, slender body, pale gray wings, and a slightly darker mantle compared to other gull species.

These gulls exhibit plumage variations based on age and season. In their breeding plumage, adult Common Gulls feature a clean white head, neck, and underparts, contrasting with their slate-gray wings. During the non-breeding season, their heads exhibit streaked gray patterns, and their plumage might appear slightly darker overall. Juvenile Common Gulls have mottled brownish-gray plumage with darker streaks, gradually developing into adult plumage within a few years.

The Common Gull is a migratory species, and its migration patterns vary among populations. In Europe, these gulls often migrate southward to winter in coastal areas or open water bodies, while some may travel as far as the Mediterranean region. In North America, their migration patterns can involve movements along the coasts or inland to wintering areas. These gulls are adaptable and can also be found in urban settings, foraging in parks, fields, and near human settlements.

As opportunistic feeders, Common Gulls consume a diverse diet, including fish, insects, small crustaceans, mollusks, and scraps of human food. They often scavenge around fishing boats, landfills, and coastal areas, taking advantage of various food sources. Common Gulls are known for their distinct calls, which include high-pitched “ki-ow” or “mew” sounds that contribute to their name, Mew Gull.

Conservation efforts for Common Gulls focus on protecting their coastal and wetland habitats, reducing pollution, and managing human activities that affect their foraging areas. Though they are not considered globally threatened, factors such as habitat loss, pollution, and disturbance in breeding colonies can impact their populations. Monitoring their populations and maintaining healthy ecosystems in their habitats are crucial steps in ensuring the continued presence of Common Gulls in their range.