Every spring, I await the return of the cedar wax wings who devour berries from 5 large holly trees. I live in Alabama and their arrival has been occurring at the same time for 25 plus years. This winter, they have all of a sudden appeared to feed on the holly trees. My question is: Has there been a change in the migration pattern? At the current rate of feeding, no berries will be left for any group arriving in the spring. Thanks for any information.