460 NORTH AMERICAN BIRDS. 
attached to the face of overhanging cliffs or underneath the eaves of buildings. 
Eggs 3-5, white, speckled or spotted with brown and lilac. 
a, Chin, throat, and sides of head rich chestnut, the lower part of throat with a 
spot or patch of glossy blue-black. 
b'. Larger, with forehead white or pale isabella-color; rump light cinnamon, 
or cinnamon-buff; young with chin and throat (often other parts of the 
head) usually more or less mixed or spotted with white; tertials and 
tail-coverts margined with pale rusty or cinnamon; chestnut of head 
wanting or only faintly indicated, top of head, back, ete., dull blackish, 
etc.; length 5.00-6.00, wing 4.05-4.55, tail 2.00-2.20. Eggs .81 x .55. 
Hab. Whole of North America in summer; in winter, Middle America 
(and portions of South America ?). 
612. P. lunifrons (Say.). Cliff Swallow. 
b, Smaller, with forehead rich chestnut, like throat and sides of head (rarely 
fawn-colored), and rump deeper cinnamon ; length about 4.50-5.00, wing 
3.95-4.30, tail 2.00-2.20. Hab. Mexico and Guatemala. _ 
P. melanogaster (Swarns.). Mexican Cliff Swallow.) 
a®, Chin, throat, and sides of head pale cinnamon, the lower part of throat without 
black spot. : 
Forehead deep chestnut, and rump deep cinnamon, as in P. melanogaster ; 
length about 4.50-4.75, wing 4.00-4.10, tail 1.90-2.00. Hab. Hayti, 
Cuba (and Yucatan ?); accidental in Florida. 
(612.1.] P. fulva (ViEILL.). Cuban Cliff Swallow.’ 
Genus CHELIDON Forster. (Page 458, pl. CXIV., fig. 2.) 
Species. 
Common Cuaracrers.—Aduits: Above glossy dark steel-blue, sometimes tinged 
with violet, the forehead rusty chestnut; quills and tail-feathers blackish, with a 
faint dull greenish lustre, the inner webs of the latter (except middle pair) marked 
with a large spot of white, or very pale rusty; chin, throat, and chest deep cinna- 
mon-rusty, the sides of the chest dark steel-blue or blue-black, sometimes confluent 
in the middle, thus forming a narrow collar; rest of lower parts varying from rich 
rusty cinnamon to pale cinnamon-buffy. Young: Much paler beneath and duller 
above than adult, with chin, throat, and chest light rusty, and rusty of forehead 
indistinct or obsolete. West a cup- or bowl-shaped structure, entirely open above, 
composed of pellets of mud, mixed with straws, etc., and lined with soft feathers, 
attached by one side to the sides or roof of a cave or to timbers within barns and 
other outbuildings. Eggs 3-5, white, speckled with brown and lavender. 
1 Hirundo melanogaster Swatns., Philos. Mag. n. s. i. 1827, 366. Petrochelidon melanogaster CaB., Mus. 
Hein. i. 1850, 47. 
2 Hirundo fulva Vieiur., Ois. Am. Sept. i. 1807, 62, pl. 30. Petrochelidon fulua Cax., Mus, Hein. i. 1850, 
47. 
With five adults of true P. fulva from Cuba, and eight of P. fulva peciloma (GossE) from Jamaica and 
Porto Rico, I have no difficulty in easily distinguishing the two forms by the characters pointed out by Professor 
Baird in ‘‘ Review of American Birds” (p. 292), 
