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.
Quick Facts. 1  When captured, this tiny owl will play dead until all danger has passed. 2  They are not very aggressive, preferring to fly away rather than fight. 3  Because it can be too cold in the desert for many nocturnal insects, the elf owl will migrate to Mexico during the winter.