BUBONIDA. — CLV. 263 
late brown, striped with white; below white, striped with brown. 
L. 10. W. 7}. T. 44. Northern regions, S. to N. U. S.; the 
American var. richardsoni Bonaparte, is larger and darker. (Eu.) 
(To P. G. Tengmalm, a Swedish naturalist.) 
832. N. acadica (Gmelin). Saw-wHet Owt. Bill black; cere 
tumid ; nostrils nearly circular, opening anteriorly. Color similar, 
less white above, more reddish below. L. 8. W. 53. T. 23%. N. 
Amer., rather northerly. 
433. MEGASCOPS Kaup. (péyas, great; oxay, screech-owl.) 
833. M. asio (L.). Screech Own. Rep Ow.. Grayish, 
streaked and barred, or else with the grayish replaced by bright 
reddish ; these two different styles of plumage about equally com- 
mon and bearing no relation to age, sex, or season. L.10. W. 7. 
T. 34. N. Am., abundant; our commonest owl. 
434. BUBO Duméril. (Lat., horned owl.) 
834. B. virginianus (Gmelin). Great Hornep Owt. Black, 
gray, and buffy, variously mottled and barred; usually a whitish 
half-collar; ear tufts large, their feathers mostly black. L. 22. 
W.16. T.10. N. Am., abundant; one of the strongest and most 
courageous of the owls. 
435. NYCTEA Stephens. (vucrevs, nocturnal.) 
835. N. nyctea (L.). Snowy Owx. Pure white, more or less 
barred with blackish. L. 23. W.17. T.10. Northern regions, 
not rare; whole U.S. in winter; the handsomest of owls. (£u.) 
436. SURNIA Duméril. (Meaning unknown.) 
836. S. ulula (L.). Hawk Owx. Day Own. Brown, much 
mottled and barred; head with white spots; « dark collar about 
neck; lower parts barred, brown and white; tail barred. L. 16. 
W. 9. T. 7. Northern regions, 8. to Wis. and Mass. (Fu.) 
The American bird, darker in color, is var. caparoch (Miiller). 
(Lat., owl; an imitation of the bird’s note.) 
437. SPEOTYTO Gloger. (ocméos, cave; tur, a kind of owl.) 
837. S. cunicularia (Mol.). Burrowine Ow. Brownish, 
much spotted, barred, and variegated with whitish. L.10. W. 7}. 
T. 4. W. America, very abundant W., living in the holes of 
prairie dogs, accidental E. Our form is var. hypogea (Bonaparte), 
its lower parts buffy. (Lat., burrower.) 
Orver XLIL. PSITTACI. (Tue Parrots.) 
« Frugivorous Raptores,” bill enormously thick, cered at base and 
strongly hooked; tongue thick and fleshy. Feet zygodactyle by 
