Yes, I am sure that someone feeds day old chicks (dead of course). I suppose you could get these and possibly rat/mice from a snake food provider.

I know that people feed rabbit (a natural prey) - see here:

English Rabbit Meat

and this link I got from a poster here.

I feed lamb and beef and chicken wings raw. Lamb is the favourite, beef is sniffed at but seems to disappear eventually, usually at night