206 FALCONS, HAWKS, EAGLES, ETC. 



labored, and when on the wing this Hawk resembles the Osprey more 

 than any other bird of prey. . . . 



" Of 49 stomachs examined, 40 contained mice ; 5, other mammals ; 

 1, lizards; 1, insects; and 4 were empty" (Fisher). 



348. Archibuteo ferruginous (Licht.}. FERRUGINOUS EOUGH-LEO. 

 Ad., light phase. Upper parts mostly rufous, the centers of the feathers fus- 

 cous ; tail grayish white, margined with rufous ; legs rufous, barred with black ; 

 rest of under parts white, more or less barred with rufous on the sides and 

 belly; tarsi fully feathered in front. Im. Upper parts dark grayish brown, 

 slightly varied with ochraceous-buff ; tail silvery grayish brown, without bars, 

 the base white ; under parts white, lightly spotted and streaked with fuscous. 

 Dark phase. Dark fuscous-brown, more or less varied with rufous ; prima- 

 ries and tail as in the ad. L., 23-00 ; W., 17-00 ; T., 10-50. 



Remarks. This species is to be distinguished from the preceding prin- 

 cipally by its much larger bill and differently colored tail and under parts. 



Range. " Western United States ; east to and across the great plains (oc- 

 casionally to Illinois) ; north to the Saskatchewan ; south into Mexico " (Ben- 

 dire). 



Nest, in trees or on the ground in rocky places. Eggs, two to four, " white, 

 or buffy white, usually more or less spotted, blotched, or clouded with brown 

 or grayish purple (or both), 2-42 x 1-88" (Kidgw.). 



This bird is rarely found east of the Mississippi. Dr. Fisher re- 

 marks : " The Squirrel Hawk is pre-eminently a bird of the prairie, 



and, unlike the common Rough-leg, 

 shows little partiality to the vicinity 

 of water, though in other respects it 

 closely resembles the latter bird in 

 habits." 



349. Aquilachrysaetos (///?). 



GOLDEN EAGLE. Ad. Back of the head 

 and nape pale, buify ochraceous; basal 

 two thirds of the tail white ; tarsus white, 

 entirely feathered ; rest of the plumage 

 fuscous - brown ; quills fuscous. Im. 

 Similar, but base of the tail with broken 

 grayish bars ; tarsus and under tail- 

 coverts ochraceous- buff. $ L., 30-00- 

 35-00; Ex., 78-00-84-00; W., 23-00-24-70; T., 

 14-00-15-00 ; Tar., 3-65-3-80. 9 L., 35-00- 

 Fio. 71. Foot of Golden Eagle. 40-00; Ex., 84-00-90-00; W., 25-00-27'00; 



T., 15-00-16-00; Tar., 4-15-4-25 (Kidgw.). 



Range. North America ; of rare occurrence east of the Mississippi. 



Washington, rare W. V. Sing Sing, A. V. 



Nest, on cliffs or rocky ledges./ .AV/yx, two to three, dull white, obscurely 

 or distinctly blotched or speckled with shades of cinnamon-brown, 2-93 x 2-34. 



