He just swallowed the entire thing, so I think he's fine, but here's a semi-recent pic.
Well this was a few months ago.
Ok. I'd her/him about 2 to 3 days before offering anymore food so that he/she has time to digest the mouse. When you do offer food offer Night Crawlers and only about 2 or 3 so that he/she has something easily digested behind the mouse and they act as a stool softener.