coccYzrs. — riAVA. 439 



feathers move bronze-brown^ lateral feathers blackish tipped, and 

 edged on the outer feathers with white; inner webs of primary 

 and secondary quills white ; thro it, fore-neck, and breast silvery 

 grev like the thighs and sides of the body; abdomen, axillaries, 

 and under wing-coverts white, quill-lining similar but tinted with 

 cream-colour. 



Total length 250 mm., culmen imperfect, wing 135, tail 133, 

 tarsus 22. 



The female described was collected on the Supenaam River. 



Adult male. Similar to the adult female. Wing 130 mm. 



The male which was examined by us is in the British Museum, 

 and was collected by Whitely at Annai on June 24th, 1889 — 

 Salrin-Godman collection. 



Breedinr^-season. Unknown in British Guiana. 



Xest. Unrecorded in British Guiana. 



F.ggs. Undescribed from British Guiana. 



Range in British Guiana. Supenaam River [McConnell collection^ , 



Extralintital Range. Brazil, Argentina. 



Hahits. Unrecorded in British Guiana. 



Genus PIAYA Less. 

 Piaya Lesson, Ti-aite d'Orn. p. 139, 1831. Type P. cayana (Linn.). 



The members of this genus have short wings and long tails. 

 The wing is short, curved, and fits close to the body. The primary- 

 quills are longer than the secondaries, exceeding the latter by the 

 length of the tarsus. 



Key to the Species. 



A. Larger, wing more than 140 mm., tail more 



than 250 mm. ; throat cinnamon P. cayona, p. 439. 



B. Smaller, wing less than 140 mm., tail less 



than 2oO mm. ; throat chestnut. 



a. Larger, wing more than 120 mm., tail 

 more than 190 mm. ; head grey ; abdo- 

 men black P. melanoyasfer,i>. 'ill. 



h. Smaller, wing less than 120 mm., tail 

 less than 1 90 mm. ; head chestnut ; 

 abdomen pale brown P. rutila, p. 441. 



300. Piaya cayana. 

 Chestnut Cuckoo. 



Ciirvhix rnynvvx Linn. Syst. Xat. 12th ed. i. p. 170, 17(50 (Tayenne"). 

 I'tp-rJinroccy.r ryatnis Cat), in Sdionili. l^ois. (luian. iii. p. 713, 1848 



