Labels:text | owl | bird of prey | picture frame | animal | bird OCR: NORTH AMERICAN DESERT Elf Owl WITH A BODY no longer than a sparrow's, this is the world's smallest owl. Despite its small size, it is a noisy bird - particularly during the breeding season, Az when the male sings from a nest hole to attract a mate. Elf owls are nocturnal, and they catch their prey by hovering over the ground, or by suddenly darting down from a perch. GO TO Long claws KEY OWLS FACTS