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.
Food and Feeding Behavior. 1  Great horned owls primarily eat small mammals such as rabbits, skunks and rodents. 2  They also eat various birds, including songbirds, ducks and even wild turkeys. 3  To a much lesser extent, they eat reptiles, amphibians, fish and insects.