Finches, Softbills, Wrens, Magpies, Raptors, Sea Birds and Waders.

These birds get much of their energy from dietary protein by producing glucose from the metabolism of amino acids.  They have a diet consisting mainly of whole animals including insects, meat and fish.  Many seed eating birds such as finches and parrots compensate for low or poor quality protein intake by supplementing their diets with insects.