RIO Bird Sand With Eucalyptus Extract And Seashells (Pack Of 6) Sterilized at temperatures of over 1.200 C, RIO sand is a perfect means of ensuring that the cage remains clean and fresh. Further hygiene control is provided by eucalyptus extract, which possesses healing qualities and has been shown to have anti-inflammatory, antibacterial and disinfecting properties. It is a good way of preventing bacteria and parasites (red mites, feather mites and lice) from multiplying on birds' bodies. It also neutralises unpleasant odours.