460 XORTH AMERICAN BIRDS. 



attached to the face of overhanging eliflPs 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. 

 6'. 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) usuallj- 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, etc., dull blackish, 

 etc.; length 5.00-6.00, wing 4.05-4.55, tail 2.00-2.20. Eggs .81 X -55. 

 Hah. Whole of North America in summer; in winter, Middle America 

 (and portions of South America ?). 



612. P. lunifrons (Say.). CUflf Swallow, 

 fc'. Smaller, with forehead rich chestnut, like tlmuit and sides of bead (rarely 

 fawn-colored), and rump deeper cinnamon ; length about 4.50-5.00. wing 

 3.95^.30, tail 2.00-2.20. Hah. Mexico and Guatemala. 



P. melanogaster (Swaiks.). 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 4.50-1.75, wing 4.00-4.10, tail 1.90-2.00. Hab. Ilayti, 

 Cuba (and Yucatan?) ; accidental in Florida. 



[612.1.] P. fulva (YiEiLL.). Cuban Cliff Swallow.' 



Genus CHELIDON Forster. (Page 458, pi. CXIV., fig. 2.) 



Species. 



Common Characters. — Adults: 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 verj' 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. J^^est 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. 



• Hirundo mclanogatlcr SWAJSS., Philos. Mag. n. s. i. 1827, 366. Peirochclidon melanogaater Cab., Mus. 

 Hein. i. 1850, 47. 



» Hirundo fttha ViEILL., Ois. Am. Sept. i. 1307, 02, pi. 30. Peirochclidon /aha Cab., Mas. Hcin. i. ISoO, 

 47. 



With five adults of tnie P./uIrn from Cuba, and eiRht of P. /uha pcecilomn (Go.sSk) from .lamaicft and 

 Porto Rico, T have no difficulty in easily diptincuishing the two forms by the characters pointed out by Professor 

 Bcird in " Review of .imcrican Birds" (p. 292). 



