What newspapers are safe for rabbits and guinea pigs

I am moving my rabbit and guinea pig indoors at the end of next month and I was wondering whether having newspaper as a floor lining instead of the usual wood shavings would be better (keeping in mind that i am going to have a litter tray in the cage also so hopefully they will learn to use that - most of the time if not all!). I have old adtraders and was wondering whether they would be alright for using inside the cage. If not, what newspapers are safe? I know its got to be a certain type of ink or sumthing but i have no clue what papers use that ink! If you could help me that would be real good! thanx

Non-colored newspaper is fine to use for pigs and rabbits. Do NOT use any paper with colored ink like is found in ads or pictures; the colored ink is toxic, especially to the pigs, if they chew on the colored pages. I recommend placing the newspaper on the bottom and then sprinkling some pine shavings over top of the paper. It makes cleaning up a snap because the whole thing rolls right up!

Since you mentioned that you're moving them indoors (I assume from outside), use caution when bringing them in. Make sure they are not too close to an AC vent, window, or fan. If it has been really hot outside, consider placing a beach towel or blanket partially over their cage until they get used to the cooler air. Pigs tend to be sensitive to temperature changes, especially drastic ones.

Also fyi, if you are using wood shavings, make certain you are using pine. Many people are tempted to use cedar becase it masks some of the odor, but it can cause cancer in rodents!! No one told me this until I had to have a cancerous leasion removed from one of my male pigs.