All the avairies and enclosures need to have a base to soak up pee and poo, Woodchip or equine bedding is what we use for this normally with a large quantity of straw on top for warmth, 
 
T&C: You will be buying bedding that directly goes to the animals, you will not be buying bedding for your own home. This is for people who are reluctant to give money directly to charities but would like to donate food and supplies.