270 STATE AGRICULTURAL COLLEGE BULLV^TINS. 



170-373-(4(>5). ]>Ies:ascoi)s asio (Linn.). * Screech Owl; Mottled Owl. 



Our moBt common owl; "very common at Ann Arbor" (Dr. J. B. Steere); '■ very 

 common at St. Joseph ;ind Albion " (O. B. Warren); " common and breeds at 

 Port Sanilac" (VV. A. Oldfield); found all months of the year; in summer it 

 whines and moans in shade trees about our houses, in winter we take it in 

 outbuildings where it remains by day; "most common owl at Bay City though 

 very few of any of the species are taken here" (N. A. Eddy); "Upper Peninsula" 

 (A. H. Boies); "Keweenaw Point" (Kneeland); breeds; nests in May in hollow 

 trees; eggs four to six, frequently eight, rarely nine, white, subspherical; eats 

 insects and English Sparrows; beneficial; "food, principally mice" (Prof. Ludwig 

 Kumleiu). There are two phases of color, the gray and the brown, the gray is 

 usually the most common, though occasionally the reverse seems true; see inter- 

 esting article on its dichromatism in American Naturalist Vol. XXVII, pp. 521 

 and 638. 



Genus BUBO Cuv. 



Great Horned Owl, mucli reduced. 



I71-375-(-Ki2). IJiibo vlrs>iiiiainis (Gjuf/.). *Great Horned Owl; Hoot Owl. 



Very common; throughout the state; all reasons; "occurs at Republic, Upper 

 Peninsula" (L. W. Watkins); "quite common at Port Sanilac" (W. A. Oldfield); 

 "common in Monroe Co." (.Jerome Trombley); "rare at Ann Arbor" (Dr. J. 

 B. Steere); "common in Grand Traverse Co." (Dr. M. L. Leach); "it occurs 

 on the main land otf Mackinac Island" (S. K. White); "very common at St. 

 Joseph and Albion, and the most common owl at Palmer, Marquette Co., 

 and along the Escanaba River " (O. B. Warren); " Keweenaw Point " (Kneeland); 



