Given the chance I'm sure the shelties would catch something. Especially Emily. She has such a high prey drive. She would love nothing more than to chase down....well anything that ran from her....LOL
She used to love flushing rabbits from near by my mom's work, but mean old me wouldn't let her chase them. LOL

I'm not sure what she would do if she ever caught anything though. She might kill it, but I doubt she'd eat it.....