Amy (Lilypad), I did get her from the wild. I know this is not recommended. She was never intended to stay our pet, but she was so wonderful from the get-go that my girls (toddlers) fell in love with her and she stayed all winter. It was around July that I brought her home, and she was smaller than she is now. I believe she was probably at least a year old, as I cannot imagine she would have reached that size in her first year. She has grown during the year (nearly) that we have had her.
My girls are toddlers and I love their enthusiasm for caring for their frog. I could not take that from them this year to release her. Secretly I'm hoping they continue with this passion and become herpetologists or something along those lines. But...it's too early for them to determine what lies ahead of them.
My oldest (5 yrs) brought home two cricket frogs in April. We have house them in another tank, separate from the grey. One of them is definitely male and calls every morning and evening. I'm wondering if the other is female. I've tried talking her into letting them go immediately, but for now she's settled on observing them for a few weeks. She feeds them diligently and gives fresh water. I'm wondering if we won't see eggs out of this pair.
Please don't be harsh on me for encouraging this, even though I know leaving our grey in the wild (and the cricket frogs) is what's best. I love that my girls care so much about frogs. They truly are their favorite creatures. I believe they have learned an enormous amount of responsibility in caring for the grey through the winter. This is ultimately a gift in itself.