My Megan was a barker, but only after I taught her to, boy did I wish for the next 15 years that I hadn't. Gina is only 9 weeks old and she barks sometimes, usually when she can't reach something, or wants us to get her out of her crate in the morning, if we don't hear her growl first. I wouldn't worry about it, unless you want her to be a barker.
Cheers Quad
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RIP Megan 3/1998-5/28/2013