- PROGNE.—PETROCHELIDON. 225 
chrast *°); GuaTEMALA (Skinner), Peten, Belize, Cahabon 16, Duefias, Escuintla, 
Retalhuleu (0.8. & F. D. G.), San Gerdénimo (Owen); Satvapor, Acajutla 
(J. M. Dow?*), La Union (0. S.); Honpuras, Comayagua (Taylor 12), San Pedro 
(G. M. Whitely *); Cosra Rica”, San José (Hoffmann ®, v. Frantzius 18), Nicoya 
(Arcé); Panama, Volcan de Chiriqui (Arcé), Lion Hill station (M*Leannan 2). 
—CotomBia®; Vengzveta; Gutana!?; Amazons Vattey42!; Ecuapor 810; 
Braziu? 15; Paraguay 4, | 
This is apparently a resident species over the wide area indicated above, or at most 
subject to very partial migration. We found it breeding in Guatemala, and Mr. Robert 
Owen obtained its eggs at San Gerénimo in 186018; and, so far as we know, it is a 
resident bird throughout the year in that country. In Mexico it is found, so Prof. 
Sumichrast tells us °°, on the shores of both oceans, not extending into the department 
of Vera Cruz further than an elevation of about 4000 feet. He adds that it nests 
at Orizaba in the steeples of churches and old buildings. In Guatemala it is also 
usually found in the low-lying districts; the greatest height at which we observed it 
was near Duefias, nearly 5000 feet above the sea. In South America, E. Bartlett 
found it breeding in Eastern Peru 4, and Natterer met with it at all seasons of the year in 
Brazil 1°. 
Regarding the names which have been applied to this bird, we have no hesitation in 
using that of Gmelin, which was based upon the Guiana series, whence we have several 
examples not to be distinguished from our Central-American birds, the true P. 
leucogastra of Baird. Hirundo domestica is another name for the same species, 
bestowed upon it by Vieillot from Azara’s description 4. We have a large series of skins 
from all parts of South and Central America, and we are unable to detect any tangible 
differences between them. 
Mr. W. H. Hudson* has given a good description of the habits of P. chalybea as 
observed by him in the vicinity of Buenos Ayres. The eggs of this species are 
white 8, 
PETROCHELIDON. 
Petrochelidon, Cabanis, Mus. Hein. i. p. 47 (1850) (type Hirundo melanogaster, Sw., = Petro- 
chelidon swainsoni, Scl.) ; Baird, Rev. Am. B. i. p. 286. 
There are four American species of this genus, three of which are found within our 
limits, and whose range is given below. The fourth is P. ruficollaris, Peale, of Western 
Peru, a bird unknown to us, but recognized by Prof. Baird. Other apparently con- 
generic species are found in various parts of the Old World, such as P. nigricans of 
Australia and P. spilodera of South Africa; so that Petrochelidon has a very extensive 
range indeed. 
* PLZ. 8. 1872, p. 605. 
BIOL. CENTR.-AMER., Aves, Vol. I., May 1883. 29 
