Use this diet when switching your bird from its old diet to Roudybush. Continue to feed to adult birds that are not laying eggs or feeding chicks. Lories and lorikeets, which will accept this diet, will have drier droppings than they have on nectar. If you have a bird that is a chronic egg-layer or a bird with a tendency to develop hypocalcaemia (like African Greys), mix 2/3 Maintenance with 1/3 High-Energy Breeder to supply more calcium and vitamin D₃. Do not give additional vitamin or mineral supplements. Fresh fruit and vegetable treats may be given as a minor part of the diet.

Feed to breeding birds that are feeding chicks. Wean chicks onto this diet for the first 1-3 months post-weaning (3 months for the larger species, one month for the smaller species). High-Energy Breeder will provide these young birds with extra protein, calcium, and Vitamin D₃ needed for the continued growth that occurs during that time. The higher energy will help put back the body weight lost in the weaning process. Mix 1/3 High-Energy Breeder to 2/3 Maintenance mixture for use in birds with a higher calcium need or are being introduced to Roudybush. Do not give additional vitamin or mineral supplements, such as cuttlebone, mineral blocks, or multivitamins. Fresh fruits and vegetables may be given as a minor part of the diet.

This diet meets the nutritional needs of the growing chick. Feed it to overweight breeding birds that are feeding chicks. Mix 1/3 Breeder with 2/3 Low-Fat Maintenance for overweight birds that are chronic egg layers or overweight birds with a tendency to develop hypocalcaemia (such as African Greys). The mixture provides the extra calcium and vitamin D3 to support egg production or to meet the needs of birds that seem to need more calcium than other birds. Do not give additional vitamin or mineral supplements, such as cuttlebone, mineral block, or multivitamins. Fresh fruits and vegetables may be given as a minor part of the diet.