Birds are also taken, occasionally on the wing. Most bird prey are smaller species that occur on or near the ground. Bird prey includes meadowlarks, blackbirds, juncos, Horned Larks, doves, bluebirds, and thrashers. Larger birds such as grouse and screech-Owls are occasionally taken. Long-eared Owls sometimes eat insects, frogs, and snakes.
Pellets are oval or cylindrical, greyish, and compact with many bones, skulls, and teeth.
They are regurgitated 3 to 4 hours after eating. Males occupy nesting territories first and may begin their territorial calling in winter. Nesting occurs mainly from mid March through May in North America. During courtship, males perform display flights around nests. Display flights involve erratic gliding and flapping through the trees with occasional single wing claps.