Hard to judge from the photo but I think it's a Least Flycatcher. The eyering is whitish, fairly diffuse, head sides look grayish, bill appears shortish with a noticeable dusky tip and the primaries look, or give the fell of not being "long", but again just a best guess from this image. Julian Hough, CT, USA jrhough1 at snet.net www.naturescapeimages.net