There is some similarity between the Bewick and the Carolina Wren. The wren at the house stays under my porch ... next to a heated wall. I wanted to verify his species so I went outside and played a recording of a Carolina Wren ...within a couple seconds he flew out from my snow covered porch and started hopping on snowy vegetation ... then he just sat there for a few minutes. Have I spooked him to leave ... territory dispute ... he has survived this winter because I have multiple feeders and heat my basement ... provides shelter under the porch, food and some residual heat ... ?