Pewit gull is a medium-sized gull known for its distinct black cap and white eye crescents. It is important to know that the pewit gull is also known by other names such as the black-headed gull, Chroicocephalus ridibundus or winter gull. Its name may vary depending on the region it is found in. In some areas, it is also referred to as masked gull, red-billed gull, or even crimson-eyed gull. People often associate the pewit gull with winter months when it is most commonly found on coasts and lakes, feeding on insects and aquatic life. So, whether you call it a pewit gull, black-headed gull, or winter gull, this bird species can be easily recognized by its unique features and behavior.