It's a...

GIRL!  She is just the right size, has all the right parts, and fought the ultrasound tech every inch of the way.  Definitely a fiesty one.  I guess I only know how to grow them one way.  We even got a free 3D ultrasound (they were trying out some new equipment), and she didn't cooperate for that either!  By the end, even the tech thought she was getting mad.  Cute little chicky.