Winter Wren was recently split into the eastern species Winter Wren and the western species Pacific Wren. The range limits of each new species are not well known yet. Initial thoughts of birds in Arizona were that Pacific Wren would be the expected species but recent field reports are showing that the eastern species occurs with about the same frequency in AZ as the western Pacific Wren.

This Winter Wren was photographed at the Gilbert Water Ranch on 11/29/2012 about a week after the original discovery.