506 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 104 



Tityra cayana cayana (Linnaeus) 



Lanius cayanus Linnaeus, Systema naturae, ed. 12, vol. 1, 1766, p. 137 (based on 

 "La Pie-griesche grise de Cayenne," Brisson, Ornithologia, vol. 2, 1760 p. 158, 

 pi. 14, fig. 1 ( = male); Cayenne). 

 1 c?, Caicara, June 4, 1952; gonads slightly enlarged; iris brown; feet black, 

 facial skin and bill red, the tip of the bill black. 



The specimen collected, in the deciduous seasonal woods, was the 

 only one seen. Local hunters believed it was the "campanero" 

 (bell-ringer) supposedly common in the hills toward Caripe. 



Family Pipridae: Manakins 



Chiroxiphia lanceolata (Wagler) 



Pipra lanceolata Wagler, Isis, 1830, p. 931 ("Guiana sive Cajenna," error). 



To what we recorded of this bird in 1950 may be added these notes: 

 On May 25 two males were observed by the collector displaying in 

 the immediate vicinity of a female, which, incidentally, appeared to 

 show not the slightest interest. The males were perched about two 

 feet apart on a branch about a foot above the ground. They faced 

 each other, with raised crests, and, alternately, one would flutter up 

 in a semisomersault in such a manner as to show the sky-blue back 

 to his rival, uttering at the same time a peculiar insectlike buzz, 

 quite different from the whistled benif toro-toro toro usually given. 

 The jet-black bodies, bright red crests, and powdery-blue backs formed 

 a striking pattern as the birds displayed. 



After checking other field notes, the collector believes he has seen 

 portions of the same display, performed high in the trees. 



Family Tyrannidae: Tyrant Flycatchers 



Machetornis rixosa flavigularis Todd 



Machetornis rixosa flavigularis Todd, Ann. Carnegie Mus., vol. 8, 1912, p. 210 

 (Tocuyo, State of Lara, Venezuela). 



Formerly this strange flycatcher was rather uncommon, remaining 

 in the vicinity of water, rarely far from cattle and burros. Now it 

 has become common in the well-watered oil company camps and, 

 instead of following animals, it has taken to capturing disabled or 

 freshly killed insects at parked automobiles and to capturing insects 

 which were attracted to lights during the previous night. Like the 

 groove-billed ani {Crotophaga sulcirostris) , it has also taken to following 

 men mowing the lawns. These birds are often seen in trios. During 

 the period from April to July they were seen displaying and chasing 

 one another. The birds face one another in a curious, hunched 

 position, crown feathers spread to show the reddish concealed crest, 

 and feathers of the upper back erected. Their bulky nests of grass 



