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

Harrison's High Potency Mash is specially designed for canaries, parakeets, finches, budgies, pigeons and other small birds.