48 FALCONID^. 



pallidior, indistincte albo fasciatus ; tectricibus subcaudalibus albis ; tibiis saturate rufis ; tectricibus 

 subalaribus albis, remigibus fuscis albo punctatis ; cauda nigricante, griseo trifasciata : rostro nigricante, 

 cera et pedibus flavis. Long, tota circa 15-5, alse 8-3, caudaB 67, tarsi 2-5. (Descr. maris ex Sayana 

 Grande, Guatemala. Mns. nostr.) 



2 marl similis, sed major. 



d juv. Supra fuscus, plumis omnibus rufo marginatis, capite summo nigro, torque cervicali et corpore toto subtus 

 isabeUinis ; superciliis albis, nigro striatis ; auricularibus fuscis, nigro striatis ; tibiis pallide rufis ; cauda 

 nigricante, albido trifasciata et albo terminata. (Descr. maris juv. ex Cboctum, Guatemala. Mus. nostr.) 



ffab. Mexico, Vera Cruz (/rfe Cahanis ^^), Potrero {Sumichrast ''), Jalapa {de Oca), Playa 

 Vicente {JBoucard'^^), Tehuantepec [Sumichrast''), Merida in Yucatan, Tizimin 

 Yok-Satz 8, Peto ( G. F. Gaumer) ; Guatemala, Savana Grande, Duenas, Vera Paz ^^, 

 Cubilguitz {0. S. & F. D. G.) ; Hondukas, Tegucigalpa {W. B. Richardson), San 

 Pedro [G. M. Whitely^); Nicakagua, San Emilio, Eio Coco, Ojoche, Matagalpa 

 ( W. JB. Eichardson) ; Costa Eica [Hoffmann ^^, v. Frantzius i'^), Miravalles ( Under- 

 wood), Turrialba [Arce, Cooper ^^), San Jose [Carmiol ^^, Zeledon ^ Cherrie '^^), Dota 

 [Carmiol ^*') ; Panama, Volcan de Chiriqui, Chitra, Boquete de Chitra, Calovevora 

 [Arce ^), Line of Railway [M-Leannan ^^). — South Ameeica, northern portion from 

 Colombia to Guiana ^ ^. 



Accipiter hicolor is a northern form of the Brazilian A. pileatus, from which the 

 adult bird differs in having the under wing-coverts white instead of chestnut, while 

 the immature differs in the under surface being plain instead of freely marked with 

 conspicuous spots. From other allied forms, such as A. chilensis and A. guttatus, 

 the adult can be recognized by its nearly uniform slate-coloured under surface. All 

 these forms, except A. pileatus, are figured in ' Exotic Ornithology,' and their distinctive 

 characters shown. 



From the northern A. cooperi, a bird equalling A. hicolor in size, the differences are 

 more pronounced. Rufous enters largely into the colour of the under surface of the 

 adult of the former bird, and the young is freely marked beneath with tear-shaped spots. 



Accipiter hicolor is found over a large area in Mexico and Central America, extending 

 from the middle of the State of Vera Cruz over the rest of the tropical and hotter parts 

 of South-eastern Mexico, but, as yet, we have no record of its occurrence in the west. 

 It is found in Yucatan and throughout Eastern Guatemala, and also on the Pacific 

 slope of the mountains up to an elevation of 5000 feet. It passes thence southwards 

 to the Isthmus of Panama, and to the northern parts of South America, being found in 

 Colombia, where Salmon met with it, and Guiana, whence Vieillot's types came and 

 where Whitely secured several specimens. 



3. Accipiter velox. 



Falco velox, Wils. Am. Orn. v. p. 116, t. 45. f. 1 ' ; Licht. Preis. Verz. Mex. Vog. p. 3 [cf. J. f. Orn. 



1863, p. 58) ^ 

 Accipiter velox, YigoTs, Check -list N. Am. Birds, ed. 2, p. 128 'j Feirari-Perez, Pr. TJ. S. Nat. 



Mus. ix. p. 168'; Herrera, La Nat. (2) i. pp. 176, 320'; Cherrie, Auk, 1892, p. 328'; 



