I have recently happened upon a young American Toad, which I suspect to be female (white throat, no chirping). She's a little more than an inch long. She's too mature to have hatched this spring, so she must be at least a year old. Here's a picture:



Is this is a female? Am I likely right about her being roughly a year old? How long do American toads take to reach full size? Does it depend on how much nutrition they get while they're growing, or is it pretty much random? My goal is to have a large female at some point. I've only had her for about three days, and she's already quite docile and has eaten from my fingers once.

Thanks ahead of time!