Hello everyone, opinions on gender of new turtle

[arizons]

Hi everyone, I am new to this forum but not new to box turtles. although, I haven't had box turtles as pets since a teenager, I couldn't help rescue the box turtle I found on craigslist! I am fairly positive that the turtle is a female...but what are your thoughts, here is a pic.

 

[JoesMum]

We can't tell without a clear picture of the plastron and tail