SPEOTYTO. 265 



a 1 . 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) ? 377. S. ulula (LiNN.). Hawk Owl. 



a 1 . 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, etc., usually 

 much darker than in S. ulula ; dark patches on sides of head, etc., more ex- 

 tensive, and deep black or brownish black ; bars of lower parts much broader, 

 and (usually) darker. Nest on pine or spruce trees. Eggs 2-6, 1.51 X 1.23. 

 Hab. Northern North America; south, in winter, to northern border of 

 United States; British Islands? 



377a. S. ulula caparoch (MiiLL.). American Hawk Owl. 



GENUS SPEOTYTO GLOGER. (Page 257, pi. LXXYIL, fig. 1.) 



Species. 



COMMON CHARACTERS. Adults: Above brownish, spotted, barred, and some- 

 times otherwise varied with white or buify ; 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 buify 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. Nest at extremity of hole or 

 burrow in ground. Eggs 3-11. 



a 1 . 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 1.27 X 1-03. 

 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 hypogaea (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-.6S (.61), tarsus 1.65-1.80 (1.75). Eggs 1.24x1-02. Hab. Florida and 

 adjacent Bahama Islands (New Providence). 



378a. S. cunicularia floridana KIDGW. Florida Burrowing Owl. 

 34 



