Harrison's High Potency feeds are specially designed for switching to Harrison's Bird Foods, for moulting birds, hand-fed birds under 6-8 months old and birds with special needs. Certain bird species such as grey redstarts, macaws, palm and moles cockatoos and golden parakeets may be fed High Potency all year round.

Harrison's High Potency Fine is specially designed for cockatiels, pigeons, lovebirds and other small to medium-sized birds.