Afterwards the female preens the male, who slides off his partner and reciprocates preening. The origin of name Preens Eddy (or Preen's Eddy) is unclear. Zaius preens and postures for the crowd, angering Conan. This produces an oily secretion that waterproofs the feathers when the bird preens. Pernell struts and preens like a balding cock-of-the-walk. It preens its plumage afterwards, sometimes applying mud or soil first. On the near side of the stream a crane or heron preens itself. The avocet commonly preens its feathers - this is considered to be a comfort movement. In the morning, it preens and stretches before dropping straight to the ground. The Coalport Bridge is a cast iron bridge near Preens Eddy. The swan turns its head from side to side and also preens itself. Preens Eddy is a settlement on the south bank of the River Severn, opposite Coalport.