178 BULLETIN 16 7, UNITED STATES NATIONAL MUSEUM 



Winter. — Harlan's hawk seems to be a bird of rather restricted 

 range at all seasons. Mr. Swarth (1926) words it as follows : "Breeds 

 in extreme northern British Columbia, east of the coast ranges, north 

 into the valley of the Yukon, and eastward for an undetermined 

 distance. Migrates soutliAvard east of the Rocky Mountains, through 

 the Mississippi Valley to a winter home in the Gulf States." 



According to N. A. Wood (1932) "its winter range includes a terri- 

 tory embracing all of Arkansas, southern Missouri, Oklahoma, and 

 northern Texas." One of his collectors in Arkansas, Clyde Day, 

 says: "These hawks seem to make their winter quarters in a strip 

 about 100 miles north and south and 300 miles east and west. I see 

 on an average ten a day, half of them Harlan's." 



BUTEG BOREALIS UMBRINUS Bangs 

 FLORIDA RED-TAILED HAWK 



HABITS 



More than 30 years ago Outram Bangs (1901) gave the above name 

 to the red-tailed hawk of southern Florida. His description was 

 based on only a single specimen collected in April 1888 at Myakka in 

 Manatee County. The characters given were: "Size and proportions 

 as in Butco horcalis horealis; color, above, darker ; throat and middle 

 of belly marked with broad, conspicuous striping and banding of 

 deep chocolate-brown; tail-feathers with dark brown markings (the 

 remains of bands) near the shafts. From B. horealis caJunis the new 

 form differs in being less suffused with reddish below, and in differ- 

 ent general tone of coloration." 



At the request of Mr. Bangs and with the expert help of John B. 

 Semple, we were able to collect, during the winter and spring of 

 1930, a fair series of these hawks. With the exception of one bird, 

 probably a migrant from farther north, this series shows that this 

 race is uniformly well marked and is permanently resident in the 

 southern half of Florida. Birds collected by William G. Fargo in 

 Brevard County are clearly referable to this race, but the characters 

 are not so pronounced. Intergradation with northern horealis may 

 occur in northern Florida. The range of this race doubtless includes 

 Cu])a and tlie Isle of Pines, and possibly Jamaica. 



Red-tailed hawks are fairly common, as hawks go, in Florida. 

 They are widely distributed throughout the flat pine woods, locally 

 known as "piney woods" or "flatwoods", with which a very large 

 portion of Florida is covered. One may drive for many miles along 

 roads and see nothing but an apparently endless expanse of flat 

 country covered with an open growth of tall, slim Caribbean or long- 

 leafed pines, rough-barked and scraggly, but in their perfection 

 sturdy, grand, and impressive. The stand is so open that dense 



