I have an adorable crestie (Burton) who is about 6.5 months old. I was wondering just how old they need to be in order to accurately sex them. At this point Burton still appears female, but I don't want to make that call just yet.
Also, I would like to set up a breeding trio/group. However I don't have the room to purchase a group of babies and raise them up. Males are so easy to find so I'm looking for females, regardless of what my little one is. Any ideas where I can find them? (The Petco I go to takes good care of theirs, but I'm not putting all my money on finding a mature female there.)