I watched Goldeneyes displaying and courting a few days back at Far Ings, a Lincolnshire Wildlife Trust Nature Reserve. Goldeneyes males and females engage in eye catching displays even at their wintering quarters, and this is one of the most striking. The males throwing their heads back while keeping their heads quite stilted. They also call at the end of the display, which I have represented on the drawing. Watercolour and pencil on my Wacom tablet.