124 



21 la. Herpefotheres cachinnans queribundus Bangs 

 and Penard, Bull. Mus. Comp. Zool., Ixiii., 

 p. 23 (1919). [Pernambuco, type in M.C.Z. 

 Harvard.] 

 Brazilian Laughing Hawk. 



Size of typical form (wing ^ 258-67), but 

 very pale in colouration. 



Brazil 



(Pernambuco) 

 to Paraguay. 



211b. Herpetotheres cachinnans nusstus Bangs & 

 Penard, Auk. xxxv., p. 444 (1918). [Bella- 

 vista, Peru, type in M.C.Z. Harvaxd.] 

 Peruvian Laughing Hawk. 



Small pale form ; wing ? 235 mm. 

 and under parts much whiter. 



head 



N.W. Peru. 



*211c. Herpetotheres cachinnans fulvescens Chapm., 

 Bull. Am. Mus. N.H., xxxiv., p. 638 (1915). 

 [Alto Bonito, R. Sucio, W. Colomb., type in 

 Amer. Mus. N.H.] 

 Western Laughing Hawk. 



Wing <J 253-258, ? 270 mm. ; smaller and 

 more richly coloured ; below nearly uni- 

 form deeper buff ; head deeper buff. 



W. Ecuador and 

 W. Colombia 

 (Pacific side of 

 Andes), N. to 

 Panama ; also 

 S. Nicaragua 

 (W. Sclat.). 



21 Id. Herpetotheres cachinnans chapmani Bangs Mexico, from 



& Penard, Bull. M.C.Z., Ixii., p. 37 (1918). Tepic and 



[Quintana Roo, Mexico, type in M.C.Z. Talasco, S. to 



Harvard]. N. Nicaragua. 



Wing c? 270-275, ? 300 mm. ; large pale 

 form ; upper parts paler ; head and under 

 parts whiter ; tail with the bands extending 

 across feathers. 



* A Psiraguayan (J in Brit. Mus. has a wing measurement of 298 mm. 



