358 PROCEEDINGS OF THE ACADEMY OF [June, 



heavily flying bird and will sit motionless for hours on the dead trees of 

 cleared land waiting for rats and lizards. Their note resembles that of 

 Buteo latissimus. The nest is built on dead trees, preferably Ceibas, 

 at a great height from the ground. 



Description. — Male, type, San Lorenzo, January 12, 1907. Above, 

 sooty-brownish with a rich, metallic, purplish gloss. Scapulars and 

 tertials, as well as upper wing-coverts, narrowly edged and tipped 

 with ashy-gray. Neck and shoulders streaked, and each feather edged, 

 with rich ferruginous. Upper tail-coverts rusty-white, barred with 

 sienna-brown. Tail rusty-ferruginous, the feathers white at base 

 and tips, and with a subterminal bar of dusky-black, broadest on the 

 outer feathers. About seven to nine distinct, dusky bands on upper 

 surface of tail. Under surface of tail pale, rusty-white without bars. 

 Forehead, lores, orbital region and a patch on crown, pure white; 

 the last partially concealed by dusky tips to the feathers. A distinct 

 "mustache" and a narrow superciliary stripe of black. Primaries 

 and secondaries rich brown, broadly tipped with and crossed by five 

 bars of black. Outer webs of first five primaries, and about one-half 

 of the inner webs of same, dusk}' with purplish reflections. 



Below white, tinged with buffy on chest, crissum and thighs; the 

 chin and throat narrowly streaked with dusky. Chest thickly streaked 

 with ferruginous, thickest on sides and almost confluent, forming 

 there a more or less distinct ferruginous patch. Feathers of belly 

 broadly tipped with dusky, with a "dumbbell-shaped" spot near the 

 base of each feather, forming a distinct, dusky zone across the abdomen. 

 Flanks dusky brown, each feather spotted with white. Thighs barred 

 with ferruginous. Lower tail coverts buff. Under wing coverts 

 buffy-white streaked with sienna-brown, and with a large triangular 

 dark-brown patch near carpal joint. Eyes, pale yellow; feet and 

 legs, yellow; cere, pale green; bill, bluish. 



Immature birds much resemble the adults, but lack the rich purple 

 gloss of upper parts, and the tail is brownish-gray, crossed by about 

 ten distinct, dusky bands. 



Length, 19 to 21 inches. Wing, 14 to 14.50. Tail, 7.50 to 8. 



39. Faloo dominicensis, Dominican Sparrow-hawk. 



Not uncommon in the interior and on the northern coast. 



40. Falco sparverius, Cuban Sparrow-hawk. 



Rare. Taken only at Miranda. 



41. Falco columbarius, Pigeon Hawk. 



Not common. Obtained at Miranda. 



