37 
on the Ornithology of Guatemala . 
subfamily. It is probably a young male of one of the black 
species— P . polychropterus or P. nigriventris. 
50. Manacus candcei (Parz.), sp. 170. 
Yzabal. (218.) This bird is not uncommon. It sits in 
the thick underwood, and is more frequently heard than seen. 
The cry it utters begins with a sharp note not unlike the crack 
of a whip. This is followed by a rattling sound not unlike the 
call of a landrail, from which, however, it differs in being con¬ 
tinuous and not repeated. 
Earn. CYPSELIDiE. 
51. Hemiprocne zonaris (Shaw), sp. 174. 
Duenas. “ This month (August) these Swifts may be seen 
almost every day, but they usually fly high—far out of gun¬ 
shot. Birds with the collar perfect appear about as numerous 
as those in the plumage of the present specimen” (with the 
collar defined behind, but hardly marked in front.)—O. S. 
52. Ch^etura rutila (Vieill.): Hirundo rutilttj Vieill. Nouv. 
Diet. xiv. p. 528: Enc. Meth. p. 534: Hirundo robini , Less. 
Trait. d'Orn. p. 270: Chatura brunneitorques , Lafr. Rev. Zool. 
1844, p. 81. 
(Plate III. fig. 1 §, 2 $ .) 
“ Duenas, July 25th. On this day I observed a considerable 
number of these Swifts flying over the open land near the house. 
Those with the rufous collar proved on dissection to be males; 
those without, females. I therefore conclude that they belong to 
the same species.”—O. S. 
The occurrence of this beautiful Swift in Guatemala is of 
great interest. I have seen New-Grenadian specimens, but they 
are scarce. M. Robin is said to have discovered it in Trinidad, 
and his specimens, now in the Museum of the Jardin des Plantes, 
form the types of Vieillot's and Lesson's descriptions. See 
Pucheran in Rev. et Mag. de Zool. 1853, pp. 443, 445. 
' 53. Ch^etura-? . 
Euliginoso-nigricans, uropygio et caudse tectncibus superioribus 
dilutioribus, pallide fuliginosis: subtus pallide fuliginosa. 
