Depending how wet is gets,
we use it in chooks nesting boxes, pigs and rabbits 9cos they have a special 'toilet' area) but only as a topper on wood shavings in the goat shed as they wee on it and it clumps together and is a pain to scape up!
Good as compost, we encourage junk mail and I some from work (as long as I know there's no staples in it...)