Several times, this muscovy duck would take a mouthful of water from the edge of Perton Pool. Then it would hod its head right back for perhaps half a minute before repeating the process. it didn’t seem to be in any distress. Was it gargling?
There was a goosander pair swimming in the Severn by the Bylet at Bridgnorth. Here is the female leading the way across the river, occasionally pausing to pay a little attention to her plumage.