The image shows a Saddle-billed stork (Ephippiorhynchus senegalensis) chasing a Yellow-billed stork (Mycteria ibis) in an effort to confiscate the fish the smaller Yellow-billed stork had caught. This behaviour is called Kleptoparasitism or cleptoparasitism. Kleptoparasitism (literally, parasitism by theft) is a form of feeding in which one animal takes prey or other food from another that has caught or collected the food. Photographed in Mana Pools, Zimbabwe.