﻿448 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



p. 65), the collector considers the Venezuelan race to be one of the 

 most active and powerful hawks found in the llanos around Cantaura 

 and Caicara. He has seen it attempt to take jaganas and gallinules 

 and would not doubt that it could occasionally take large birds. 



Fledglings, apparently just out of the nest, were seen begging food 

 from adults in February and in July. 



The note of this bird was a harsh, wheezy nerr, not unlike the note 

 of the turkey vulture (Cathartes aura aura) but considerably louder 

 and often of much longer duration, 



HYPOMORPHNUS URUBITINGA URUBITINGA (Gmelin) 



Falco Urubitinga Gmelin, Systema naturae, vol. 1, pt. 1, 1788, p. 265 (Brazil). 



SPECIMENS COLLECTED 



1 ad, 9 , Cantaura, April 20; gonads enlarged; iris light brown, cere, tarsi, and 

 toes bright yellow. 



1 im. ? , Cantaura, May 7, 1946; gonads not enlarged. 



The young bu-d has all the rectrices longitudinally marbled ; in most 

 comparable specimens this is restricted to the central pair or two, the 

 others being transversely marked. 



This is an uncommon hawk, found in and along the edge of the dry 

 w^oods around Cantaura. It was recorded during the months of 

 January through August, and December. Karely were more than 

 one or two individuals seen in a day. Though a large, powerful bird, 

 it always impressed the collector as being sluggish; he would not expect 

 it to capture large birds or rabbits. The adult bird collected was 

 hunting frogs at a small woodland pool, the remains of several being 

 found in the gizzard. A large lizard was found in the gizzard of 

 another April bird, which was not prepared as a specimen. 



BUSARELLUS NIGRICOLLIS NIGRICOLLIS (Latham) 



Falco nigricollis Latham, Index ornithologicus, vol. 1, 1790, p. 35 (Cayenne). 



SPECIMEN COLLECTED 



1 9 , Cantaura, April 4, 1948; gonads slightly enlarged; iris brown, feet gray, 

 soles spiny, bill and cere black; gizzard contained a 6-inch fish apparently caught 

 alive in a shallow pond; an adult in good plumage. 



This hawk was encountered at streams and ponds on the savanna 

 and in the deciduous seasonal woods. It was not common, two being 

 the greatest number seen in one day. It was recorded during Febru- 

 ary, March, April, and May. 



GERANOSPIZA CAERULESCENS (Vieillot) 



Sparvius caerulescens Vieillot, Nouv. Diet. Hist. Nat., vol. 10, 1817, p. 318 

 (South America; Cayenne, designated as type locality by Berlepsch and 

 Hartert, Nov, Zool., vol. 9, 1902, p. 114). 



