SPEOTYTO. 265 
a. Light-colored, with white largely prevailing on top of head, hind-neck, and 
scapular region; dark markings of head usually dark brown, much reduced 
in size; bars on lower parts narrow, rather light brown. Hab. Northern 
portions of eastern hemisphere, from Norway to Kamtschatka and more 
northern Asiatic shores of Bering’s Sea (Plover Bay); accidental in western 
Alaska (St. Michael’s) ?......,..:ccseceseeees 377. S. ulula (Linn.). Hawk Owl. 
a’, Dark-colored, with black or brownish black prevailing on top of head and hind- 
neck, and deep brown on scapular region—the brown of back, ete., usually 
much darker than in S. ulula; dark patches on sides of head, etce., more ex- 
tensive, and deep black or brownish black ; bars of lower parts much broader, 
and (usually) darker. Vest on pine or spruce trees. Hggs 2-7, 1.55 x 1.24. 
Hab. Northern North America; south, in winter, to northern border of 
United States; British Islands ? 
377a. S. ulula caparoch (Miz.). American Hawk Owl. 
Genus SPEOTYTO Guoazr. (Page 257, pl. LXXVIL, fig. 1.) 
Species. 
Common CHarActers.—Adults: Above brownish, spotted, barred, and some- 
times otherwise varied with white or buffy; lower parts white or buffy, broadly 
barred, or transversely spotted, with brown; eyebrows, chin, and space on middle 
of chest plain white; a collar of mixed brown and buffy across throat; legs plain 
white or buffy. Young: Above plain brown, except wings and tail, which are 
marked as in adults; upper tail-coverts, and large space on wing-covert area, with 
lower parts, plain buff; anterior lesser wing-coverts darker brown than back; upper 
throat, and broad space across chest, plain white. West at extremity of hole or 
burrow in ground. ggs 3-11. 
a’. Lower parts with ground-color distinctly buffy or much tinged with buff, the 
lower tail-coverts never (?) spotted; upper parts earthy brown, with buffy 
spotting and barring; length 9.00-11.00, wing 5.80-7.20 (6.69), tail 3.15- 
3.50 (3.34), culmen .55-.60 (.58), tarsus 1.70-1.92 (1.80). Eggs 1.22 x 1.00. 
Hab. Western North America, north to or beyond northern boundary of 
United States, east to Great Plains, south to Guatemala; accidental in New 
York (city) and Massachusetts. ' 
378. S. cunicularia hypogza (Bonap.). Burrowing Owl. 
a, Lower parts nearly pure white, with little if any buff tinge, except on thighs 
and lining of wings; upper parts clear sepia-brown, with nearly pure white 
spotting and barring; wing 6.30-6.70 (6.47), tail 3.00-3.50 (3.15), culmen 
.58-.68 (.61), tarsus 1.65-1.80 (1.75). Eggs 1.24 1.04. Hab. Florida and 
adjacent Bahama Islands (New Providence). 
378a. S. cunicularia floridana Ripaw. Florida Burrowing Owl. 
34 
