It got up to 89* here yesterday so we took our 8 day old ducklings outside. We put a shallow cake pan with a little luke-warm water in it with them and they loved playing in the water. At that time, we noticed balding on 3 of our cayugas from the back of the head to where the wings begin. The skin didn't look sore or infected in any way. Is this something to be concerned about? Should use blue kote on the area? Thanks!