HI,My female has done this also.The first time I saw it I thought OH NO!-But nothing bad ever happened.She eats fine and seems perfectly fine,this was in the winter but temps in there were in the low 80s-81-82.I guess they just do it from time to time.So dont worry unless they start stareing at the celing.My female is about 7 feet.If anyone does know why they do it I'd love to hear it.thanks in advance jenni/