288 BIRDS — HIEUMDINID^. 



abuudant, and nested in the holes of dead trees along the river banks. 

 As these trees disappeared, the Swallows removed to some more suitd,ble 

 locality. I have never known them to breed in bird-boxes in this 

 viciniiy, though they sometimes do so in Norihern Ohio. In the East- 

 ern Slates they have almost forsaken their primitive manner ot breeding, 

 resorting to bird-boxes for that purpose. In Ohio the White bellied 

 Swallows nest in the deserted hole of a Woodpecker, or natural cavity 

 of a dead tree, always in the vicinity of water. Even during their 

 migiiitions the birds are seldom seen far from running streams. The 

 nest is built of leaves and grass, and thickly lined with down and 

 feathers. The eggs are white, unspotted, and of oblong oval shape, 

 measuring about .80 by .55. 



Genus PE IKOCHELIDON. Cabanis. , 



Bill stout and deep, somewhat as in Progne. Nostrils entirely superior, open, without 

 overhanging membrane on the inner (or upper) side, but somewhat oveihuug by short 

 bristles, seen also aloug the base of mandible and in chin. Legs stout, the taisi short, 

 not exceeding the middle toe exclusive of its claw; feathered all round for basal third 

 or fouitb, though no feathers are inserted on the posterior face. Tail falling short of 

 the closed wiugs, nearly square or slightly emarginate ; the lateral feathers broad to 

 near the ends, and not attenuate. 



Pbteoohelidon lunifrons (Say) Lawrence. . 



Cliff" fcswaUo-w ; Eave S'wallo'W'. 

 Eirundo fulva, Bonaparte, i, 18ii5, 65. — Kirtland, Ohio Geol.Snrv., 1838, 162, 180. — 



Head, Proc. Phila. Acad. Nat. Sci,, vi, 1853, B95 

 Hirundo lunifrons, Kihkpatrick, Ohio Farmer, viii, 1859, 267. — Wheaton, Ohio Agric. 



Eep. for 18b0, 1861, 364 ; Reprint, 6, 16. 

 Petrochelidou lunifrons, Wheaton, Food of Birds^ etc., Ohio Agric, Rep. for 1874, 1875, 



565; Reprint, 5.— Langdon, Cat. Birds of Gin., 1877, 7; Revised List, Jour. Gin. 



Soo. Nat. Hist, i, 1879, 173; Repriat, 7. 



Sirundo lunifrons, Sat, "Long's Exp. Ey. Mts, ii, 1823, 47." 

 Hirundo f aha, DbWitt Clinton, Ann. Lye. N. Y., vii, 18^4, 156. 

 Petroolielidon lunifrons, Lawrence, Ann. Lye. N. Y., vii, 1861, 317. 



Lustrous steel-blue ; forehead whitish or brown, rump rufous, chin, throat, and sides 

 of head chestnut; a steel-blue spot on the throat ; breast, sides, and generally a cervi- 

 cal collar rusty gray, whitening on the belly. Young sufficiently similar. Length, 5 ; 

 wing, 4i; tail, 2i. 



Habitat, North A.nerica at large. Africa (Layard). 



Very common summer resident. Breeds. Arrives about the middle 

 of April and remains until September. 



This Swallow, like the preceeding, migrates along the banks and over 

 the beds of streams. They are very variable in their numbers in differ- 



