_Tyto alba pratincola_ (Bonaparte). Barn Owl. Uncommon resident. One specimen in the University of Idaho collection of mounted birds was taken near Moscow, Latah County. _Otus asio_ (Linnaeus). Screech Owl. Common resident. a. _macfarlanei_ (Brewster). MacFarlane Screech Owl. Resident in southern Idaho. (D. A. 1861, Boise, Ada County, April 11, 1942.) b. _brewsteri_ Ridgway. Brewster Screech Owl. Resident in northern Idaho. (D. A. 1312, Lapwai, Nezperce County, December 25, 1938.) _Otus flammeolus flammeolus_ (Kaup). Flammulated Screech Owl. Rare resident. Specimens have been taken in two localities. Merriam (1891:96) took one specimen on the west side of Big Wood River, "only a few miles north of Ketchum, September 22," 1890. The record from Blaine County and the one of Rust (1915:125), near Fernan Lake, September 28, 1914, are the only two positive records of this species to my knowledge. _Bubo virginianus_ (Gmelin). Great Horned Owl. Common resident. See A. O. U. Check-list (1931). a. _wapacuthu_ (Gmelin). Arctic Horned Owl. Migrant. b. _occidentalis_ Stone. Montana Horned Owl. Resident in central and southeastern Idaho. c. _lagophonus_ (Oberholser). Northwestern Horned Owl. Resident in western and northern Idaho. (D. A. 1486, 10 mi. SW Riggins, Idaho County, September 15, 1939.) _Nyctea scandiaca_ (Linnaeus). Snowy Owl. Casual migrant. Merrill (1897:352) stated that there was an invasion of owls of this species in the winter of 1896-'97, and many were observed during that time at Fort Sherman. _Surnia ulula caparoch_ (Müller). American Hawk Owl. Uncommon. Hand (1933a:32) reports one specimen of this owl taken at Stanley Butte, 10 mi. S Lochsa River, Idaho County, on November 3, 1925, and mentions one other observed in the summer. He suggests that the bird breeds in northern Idaho. _Glaucidium gnoma californicum_ Sclater. California Pygmy Owl. Fairly common resident in the Canadian Life-zone. Specimens seem referable to subspecies _pinicola_, recently synonymized by the A. O. U. Committee. (D. A. 1311, Priest River, Bonner County, January 3, 1939.) _Speotyto cunicularia hypugaea_ (Bonaparte). Western Burrowing Owl. Fairly common local resident. (D. A. 1388, 10 mi. W Boise, Ada County, April 2, 1939.) _Strix nebulosa nebulosa_ Forster. Great Gray Owl. Vagrant. A specimen, D. A. 1303, taken on December 8, 1938, was sent me from 9 mi. NE Grangeville, Idaho County, December 8, 1938. _Asio otus wilsonianus_ (Lesson). Long-eared Owl. Fairly common resident. (D. A. 1532, 5 mi. SW Moscow, Latah County, April 29, 1940.) _Asio flammeus flammeus_ (Pontoppidan). Short-eared Owl. Very common resident in the Transition Life-zone. (D. A. 1346, 2 mi. S Moscow, Latah County, March 7, 1939.)