286 BIRDS — HIRUNBIlSriD^. 



Key to the Genera of HiRUNDiNiDiB. 



* Plumage above mire or less lustrous blue-blaok or green ; no tarsal tuft nor re- 

 curved hooks on outer primary. 

 t Tail deeply forked ; outer feathers attenuate and blotched with white. 



HlRUNDO. 



1 1 Tail scarcely forked; rump and forehead not colored like back. 



PuTKOCHBLIDON. 



+ t + Tail somewhat forked, unblotched ; rump and forehead colored like back. JT 

 a Lustrous green or violaceous ; pure white below ; length less than 6^. 



Tachycineta. 

 a a Lustrous blue-black ; female paler and whitish below ; length more than 6^. 



Prognb. 

 * * Plumage brownish- gray ; scarcely lustrous, and without shades of blue or green. 

 X A little tuft of feathers on tarsus at base of hind toe ; edge of wing smooth. 



COTYLE. 



X X Outer web of first primary more or less saw-like, with a series of minute re- 

 curved hocks ; no tarsal tuft. Steegidopteryx. 



Genus HIEUNDO. Linnaeus. 



Nostrils lateral. Tarsi short, not exceeding middle toe without its claw; the upper 

 joint covered with feathers which extend a short distance along the inner face of the 

 tarsus. Tall very deeply forked ; the lateral feather much attenuated, twice as long as 

 the middle. Basal joint of middle toe free for terminal fourth on outside, for half on 

 inside. 



HlRUNDO ERYTHROGASTKA Boddsert. 

 Barn STvallo^v. 



Hirundo rufa, Kirtland, Ohio Geolng. Surv., 1838, 162.— Read, Proc. Philad. Acad. Nat. 



Sci., vi, 1853, 395. — Kirkpatrick, Ohio Farmer, viii, 1859, 227. 

 Mirundo horreorum, Whkaton, Ohio Agric. Rep. for 1860, 364; Reprint, 1861, 6; Food 



of Birds, Ohio Agrio. Rep. for 1874, 564 ; Reprint, 1875, 4.— Langdon, Cat. Birds of 



Ciu., 1877, 7. 

 Hirundo erythrogaster var. liorreorum, Langdon, Revised List, Journ. Cin. Soo. Nat. Hist., 



• i, 1879, 173; Reprint, 7. 

 Hirundo erylhrogasier, BoDDiERT, Tab. PI. El., 1783, 45. 

 Hirundo rufa, Gmklin, Syst. Nat., i, 1788, 1018. 

 Hirundo liorreornm, Barton, "Frag. N. H. Penna., 1799, 17." 

 Hirundo erythrogaster var. horreorum, CoUES, Birds of N. W., 1874, 85. 

 Hirundo eryllirogastra, CouBS, Birds of Col. Val., 1878, 407. 



Lustrous steel-blue ; below, rufous or pale chestnut of varying shade ; forehead, chin 

 and throat deep chestnut; breast with an imperfect steel-blue collar. Tail with white 

 spots on the inner web of all the feathers except the inner pair. Sexes alike, young less 

 lustrous, much paler below, tail simply forked. Wing 4^-4} ; tail 2-} to 5. 



Habitat, America. 



Very abundant summer resident. Breeds. Arrives about the end of 

 the first or during the second week of April, and remains until Septem- 

 ber 1st. 



