282 CEACID^. 



0. poliocephalce simUis, sed subcaudalibus et rectricum extimamm apicibus pure albis distinguenda. Long. 



tot. circa 20-0, a\x 8-3, caudte 8-5, tarsi 2-3. (Descr. maris adulti ex Costa Grande, Guatemala. Mus. 



nostr.) 

 S marl similis. 



Hab. Guatemala*, Pacific slope 2, Ketalhuleu, Costa Grande * (0. S.); Salvador, 



La Libertad (Bichardson ^) ; Nicaeagua, Momotombo {Richardson % Eealejos 



{Lesson ^). 



The White-bellied Guan is very abundant in the Pacific coast region, and in the 



early morning the woods in the neighbourhood of the more remote villages resound with 



its loud continued cries. It is usually to be seen perched on the trees, and on being 



approached exhibits scarcely any symptoms of alarm. The breeding-season appears to 



extend over a considerable period, as young birds and fresh eggs were observed 



simultaoeously in the month of March. The chicks appear to run almost as soon as 



they are hatched, and display great agility in avoiding capture by clinging to the 



branches of the underwood 2. The nest, composed entirely of twigs, is usually placed 



in a low bush, and contains two creamy-white eggs with rough shells, measuring I'd 



by 1'25 inch. 



5. Ortalis cinereiceps. 



Ortalida cinereiceps. Gray, List Gallinae Brit. Mus. p. 12'; Salv. Ibis, 1869, p. 318'; P. Z. S. 



1870, p. 217'; Scl. & Salv. P. Z. S. 1870, p. 540*; Xutting, Pr. U. S. Nat. Mus. vi. 



p. 408 '. 

 Ortalis cinereiceps, Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 128^; Richm. Proc. U. S. Nat. 



Mus. xvi. p. 523^; Grant, Cat. Birds Brit. Mus. xxii. p. 515'; Handb. Game-Birds, ii. 



p. 249'; Underwood, Ibis, 1896, p. 448'°; Bangs, Auk, 1901, p. 35 ' ". 

 Ortalida poliocephala, Lawr. (nee Wagl.), Ann. Lye. N. Y. vii. p. 333 '^ ; is. p. 139 "; Scl. & Salv. 



P. Z. S. 1864, p. 371"; Salv. P. Z. S. 1867, p. 161"; v. Frantz. J. f. Orn. 1869, p. 372". 

 Ortalida frantzii. Cab. J. f. Orn. 1869, p. 211 ". 



Supra saturate brunuescenti-olivacea ; pileo nuchaque saturate cinereis ; primariis castaneis ; rectricibns 

 extemis brunnescenti-albo tenninatis ; prsepectore paUidiore bruimescenti-olivaceo, abdomine graduatim. 

 brunnescenti-albo. Long. tot. circa 22-0, alae 8'o, caudae 8'7, tarsi 2-8. (Descr. maris adulti ex Costa 

 Kica. Mus. nostr.) 



$ mari similis. (Descr. feminae ex Veragua. Mus. nostr.) 



Hab. Nicaeagua, Los Sabalos, east of Lake of Jvicaragua {Xutfitig^), Kio Escondido 

 {Richmond ^) ; Costa Rica ( Carmiol * ^, v. Frantzius * ^^ "), Turrialba {Carmiol ^% San 

 Jose {v. Frantzius ^ ^^), La Palma ^^, Jimenez, Cartago ® {Zeledon), Irazu, Miravalles 

 {Underwood ^'^) ; Panama {Kellett & Wood^ ; M'Leannan*^^^^^}, Divala, Chiriqui 

 {Brovm^^), Paraiso Station {Hughes^), Santiago de Yeragua^sis, Cordillera de 

 Tolesis^ Castillo {Arc6^^). 



0. cinereiceps is distinguished by its chestnut wings and dark grey head and nape. 

 It is universally distributed over the whole of the high land of Costa Rica, and generally 

 met with in small flocks, which frequent more particularly the borders of banana- 



