Field guide author David Sibley reported hearing a Sedge Wren at Great Meadows NWR in Concord, MA, on the evenening of 11 August, while he was there to investigate a reported small goose (which he identified as a Cackling Goose). The next evening a group of birders looking for both birds found this wren about half way along the dike on the right side. The bird was very secretive and stayed close to the ground, requiring patience to get a good look. I think most of those who saw the bird thought it was the Sedge Wren, with varying degrees of confidence. The alternative discussed was a juvenile Marsh Wren. Everyone agreed that the bird appeared to be quite small, smaller than a Marsh Wren. One comment on the photos: I think the barred pattern on the wing, most visible in the third photo in the top row, appeared more pronounced in real life than it does in the photos. Any thoughts on the ID would be appreciated. If it is a Sedge Wren, does the lack of white streaking on the back and crown indicate that it is a juvenile? Feel free to add your thoughts by clicking "post a comment" below.