Heterotrophs are “other-feeders”, which mean that they obtain their carbon atoms from organic compounds. Some heterotrophs, called photoheterotrophs, can obtain energy from sunlight. By far the largest group of prokaryotes, however, are nutritionally similar to animals in that they obtain both energy and carbon from organic molecules. Chemoheterotrophs are prokaryotes that are so diverse that almost any organic molecule can serve as food for some species. In the image below there is a white ibis which is definitely a heterotroph. It was extremely hard to take a picture of it because if I was inside a ten feet radius range then it would fly away.