I met 3 adult Yorkies before getting Ellie. One was a girl and she is the one I bonded with best. She made me want Ellie. So of course I wanted a female. I also like that some of the females have that really bossy, Yorkie-type sassy personality. I just like having my little girl and I don't think that will ever change. The boys are sweet and I would have one. I'm not really into all whole boy behavior thing though. And Ellie does mark. She has done it inside and she does it outside. She squats and gets up and squats again as many times as possible, so we walk on the sidewalk instead of grass when possible.