Mediterranean Gull vs Ring-billed Gull

The Mediterranean Gull and Ring-billed Gull can be distinguished by their bill and head markings. The Mediterranean Gull has a thicker, all-red bill and a distinctive black head in breeding plumage, while the Ring-billed Gull features a thinner, yellow bill with a black ring near the tip and a white head with subtle streaking in non-breeding plumage.

1. Bill: Look for the Mediterranean Gull's thicker, all-red bill versus the Ring-billed Gull's thinner, yellow bill with a black ring. 2. Head markings: In breeding season, the Mediterranean Gull has a full black head, while the Ring-billed Gull has a white head with streaks in non-breeding plumage. 3. Wing pattern: Mediterranean Gull has white wings with black tips; Ring-billed Gull has gray wings with black tips and a white trailing edge. 4. Habitat: Consider the location; Mediterranean Gulls are more coastal, while Ring-billed Gulls are often found inland.

Both species are medium-sized gulls, but the Ring-billed Gull is slightly larger and more robust than the Mediterranean Gull.

In breeding plumage, the Mediterranean Gull has a striking black head and pure white body, whereas the Ring-billed Gull has a white head with subtle streaking in non-breeding plumage and a gray back. The Mediterranean Gull's wings are white with black tips, while the Ring-billed Gull has gray wings with black tips and a white trailing edge.

Both species exhibit typical gull behavior, including scavenging and foraging in flocks. However, the Mediterranean Gull is more coastal, while the Ring-billed Gull is often found inland.

The Mediterranean Gull is primarily coastal, often found along beaches and estuaries. In contrast, the Ring-billed Gull is more adaptable, frequently seen in urban areas, lakes, and rivers, especially in North America.

The Mediterranean Gull has a distinct, nasal 'yee-ow' call, while the Ring-billed Gull's call is a more typical gull-like 'kree-eee-ar'.