Decorah, Decorah North
Eastern Screech-Owls are non-migratory and live in the Decorah area year-round. They eat a wide variety of small animals, including rats, mice, squirrels, moles, and rabbits; flycatchers, swallows, thrushes, waxwings, finches, jays, grouse, doves, shorebirds, woodpeckers, and sometimes nestling screech owls; crayfish, tadpoles, frogs, and lizards; and invertebrates including insects and earthworms. Eastern Screech-Owls cache food for as long as four days and, like other owls, tend to eat the heads of prey first – a good diagnostic for owl kills!
Eastern Screech-Owls nest in cavities. They don’t dig holes or build nests, but they modify their chosen spot slightly by creating a depression for eggs. Egg laying usually takes place between early March and mid-September. Eastern Screech-Owls lay two to six white eggs per clutch and produce one clutch per year. Females incubate eggs for 27-34 days and both parents tend young, which leave the nest 26-30 days after hatching. To learn more, visit Cornell’s website.
Bird Range Maps of North America
Ridgely, R.S., T.F. Allnutt, T. Brooks, D.K. McNicol, D.W. Mehlman, B.E. Young, and J.R. Zook. 2003.
Digital Distribution Maps of the Birds of the Western Hemisphere, version 1.0. NatureServe, Arlington, Virginia, USA. Data provided by NatureServe in collaboration with Robert Ridgely, James Zook, The Nature Conservancy – Migratory Bird Program, Conservation International – CABS, World Wildlife Fund – US, and Environment Canada – WILDSPACE.
Web Link: http://bit.ly/2ynPQ5I
Johnsgard, P. A. 1988. North American owls: biology and natural history. Washington, D.C: Smithsonian Institution Press.
Owl photo: By DickDaniels (http://carolinabirds.org/) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], from Wikimedia Commons