Joint Publication 5-0, Joint Operation Planning, reflects current guidance for planning. military operations and, as a keystone publicatio n, forms the core of joint doctrine for joint. operation planning throughout the range of military operations.
Food Habits. Elf owls primarily eat insects â especially moths, beetles, and crickets â but occasionally they eat small mammals and reptiles, like spiny lizards, earless lizards, blind snakes and kangaroo rats. In southeastern Arizona, elf owls change their diet based on the weather.
As a result, owls must eat frequently, which also means that they must hunt frequently. Small owls, such as the Elf Owl, have extremely high metabolisms that require them to consume enough prey to equal 50% of their body weight every day. Larger owls have slower metabolisms and eat less than smaller owls do in proportion to their body weight. The Snowy Owl has a metabolism which at times greatly differs from that of all other owls. It might fast for over a month during winter due to the scarcity of prey.