Fenland Trail, Banff, Alberta - 29 June 2009
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The tall trees on either side of the trail made observation difficult. With a stream on the north side it was impossible to get a better angle. From the field markings I have guessed that it is a Tennessee Warbler.
(not positive of the identification. Although not seen in this photo, the legs on this sandpiper were shorter than those of a Stilt and are dark in color)