1864.] ON A COLLECTION OF BIRDS FROM PANAMA. 369 
caliente of either coast, and seldom extend their range to a greater 
elevation than 3000 feet. 
229. SpizaETus orNatus, Daud. 
Equally abundant with the preceding, and occupying the same 
range. 
230. Sp1zaAETUS MELANOLEUCUs (Vieill.). 
Decidedly a scarce bird throughout Central America, its range 
being usually confined to the hottest region of the immediate sea- 
coast. It occurs in Panama, Costa Rica, and Guatemala. 
231. BuTEo PENNSYLVANICUS, Wils. ; Lawr. J. c. vii. p. 288. 
232. Burro BOREALIS, Gm. 
An immature bird. 
233. AsrurtNa NiTIDA, Lath. ; Lawr. l. c. vil. p. 316. 
A common Central American coast species. 
234. URUBITINGA ANTHRACINA, Nitzsch; Lawr. /. c. vil. p. 316. 
Occurs in Costa Rica and throughout Central America. 
235. Harpacus pipentatus, Lath.; Lawr. /. c. vil. p. 317. 
An immature bird. 
236. Cyminpis uncrnatus, (Temm.) Pl. Col. 103, 104 & 115. 
A specimen in immature plumage. 
237. Circus Hupsonicus, Linn.; Lawr. /. ¢. vii. p. 317. 
A number of other Accipitres occur on the isthmus. Mr. Law- 
rence gives 
Sarcorhamphus papa, Linn. 
Cathartes aura, Linn. 
atratus, Bartram. 
Pandion carolinensis, Gm. 
Herpetotheres cachinnans, Linn. 
Buteo ghiesbreghti, Du Bus. 
Asturina magnirostris, Gi. 
Urubitinga zonura, Shaw. 
Hypotriorchis rufigularis, Daud. 
Leucopternis semiplumbeus, Lawr. 
Accipiter pileatus, Max. 
collaris, Scl. 
Micrastur gilvicollis, Vieill. 
poliogaster, Temm. 
Geranospiza cerulescens, Vieill. 
Elanoides furcatus, Linn. 
Proc. Zoou. Soc.—1864, No. XXIV. 
