Black-headed Gull displaying

black-headed gullpencilAfter spending their white headed winters feeding on fields or scavenging in towns and parks, Black-headed Gulls moult into their dark chocolate heads, with a contrasting white rings around March time. They move to their nesting grounds where there is much posturing, displaying and screechy calling. The sketch shows the ‘forward posture’ adopted when threatening an opponent, but also when pairs display to each other.