308 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



Bill yellowish; back chestnut f errugineous ; throat and breast 

 cinnamon rufous; abdomen gray tinged with buff; wing, about 

 107; tail, about 155 mm. 



Piaya rutila Illiger. (Cayenne) South 

 American from Brazil and Peru northward. 

 B. Size larger; wing more than 115 mm. (4.50 in.). 



a. More or less of under surface of rectrices distinctly rufous 

 or rusty. 

 a 1 Under tail coverts grayish. 



Back between auburn brown and Sanford brown; 

 throat vinaceous fawn; upper abdomen pale mouse 

 gray; lower abdomen neutral gray; under tail coverts 

 slightly darker neutral gray; thighs smoke gray; under 

 wing coverts ashy white; wing, about 140; tail, about 

 295 mm. 



Piaya cayana colombiana (Cab.). (Carta- 

 gena, Colombia) Northern Colombia and 

 Venezuela. 



Back between Hessian brown and claret brown; 

 throat fawn color; upper abdomen smoke gray; lower 

 abdomen deep neutral gray; under tail coverts darker, 

 approaching dark neutral gray; thighs deep neutral 

 gray; rusty coloration on tail decidedly darker than 

 in colombiana; under wing coverts pale mouse gray; 

 wing, about 140; tail, about 290 mm. 



Piaya cayana venezuelensis Cory. (Orope, 

 Zulia, Venezuela) Low country of Orope 

 region, Zulia, Venezuela. 



Back near hazel brown; throat approaching vinaceous 

 fawn, but with a tinge of ochraceous (paler and quite 

 different from cayana); upper abdomen between 

 smoke gray and light neutral gray (similar to cay and) ; 

 lower abdomen neutral gray, shading into slightly 

 darker neutral gray on under tail coverts; under sur- 

 face of rectrices only tinged with rufous and not 

 strongly rufous as in cearce; wing, about 147; tail, 

 285 mm. 



Piaya cayana pallescens (Cab. & Hein.). 

 ("North Brazil," suggest Bahia) Central 

 and eastern Brazil. 



Back approaching hazel brown, but paler than in 

 pallescens from Bahia; throat as in pallescens; upper 



