Birds that eat mature insects, such as flies, moths and beetles, should not be fed large numbers of immature insects like caterpillars, grubs and pupae. On a dry weight basis the composition of mature insects is about 65% protein, 10% fat and 20% carbohydrate. The protein contains all essential amino acids and the fat is highly unsaturated. Captive birds are commonly fed the larval stage of insects such as meal worms and fly pupae. These are not good food substitutes for birds that eat mature insects. Larval stage insects can contain up to 40% fat which can significantly dilute the ratio of nutrients to energy in the diet.
Wombaroo Insectivore Rearing Mix is a complete food for rearing young insectivorous or carnivorous birds. It is also used as an excellent breeding supplement for adult birds