Kahlia - Dalmatian Appreciation
No - owls are carnivorous. If you aren't squeamish, some defrosted feeder mice sold for snakes will be ok for him to eat.

Kamakiri
They eat meat, try feeder mice or raw chicken maybe, it won't eat the bird seed. I don't know where you're at, but if there a wild life rescue center in your area they could give some info on what to feed it if anything.

wacky
No, an Owl of any species only eats anything from worms ,insects,etc. but most eat flesh such as Rats. Mice.even birds. So it will not even be tempted by your Crackers or Bird seed, Buy some d.o. chicks or mice most pet store have these in freezers.or put down a mouse trap or two with a little Chocolate on and catch the mice this way ,but keep it out of sight of the Owl in case it gets caught in it.