The Fox Squirrel (Sciurus niger), or Eastern Fox Squirrel of some authors, is a resident tree squirrel of the eastern two thirds of the United States. It is somewhat larger than the Eastern Gray Squirrel, with which it is sometimes found. The Fox Squirrel in the top two images here was sitting atop a bird feeder in Austin, Travis Co., Texas, in March, 2007. The animal sat in this curious pose for several minutes before scurrying off up a pecan tree. These shots were taken with a Canon EOS 1D Mark II and EF 500mm F/4 L IS lens.