HIRUNDO HOEREOEUM, BAEN SWALLOW. 85 



Eidgway, are noticeably different from those of the other species of 

 this genus, being a much clearer green, and more sparingly dotted with 

 mere points of very dark purplish-brown. Afew specks are sprinkled over 

 the whole surface, but the tendency is to aggregate just at the larger end, 

 where the spots, though so numerous, preserve their distinctness. In 

 size and shape the eggs are not very different from those of P. rubra, 

 though perhaps averaging a little larger and especially thicker. The 

 nidification is essentially the same. 



Family HIRUNDINID^: Swallows. 



■^ HIRUNDO HOEREOEUM, Barton, l.'- - 

 American Barn Swallow. 



a. erythrogaster, 



mrundo eryfhrogasler, Bodd., P. E. 1783, pi. 724.— ScL., Cat. Am. Birds, 18C2, 39; 



P. Z. S. 1867, 340. 

 Sirundo rvfa, Gm., Syst. Nat. i, 1788, 1018.— Bp., Consp. i, 1850, 339 (iu part).— Buem., 



Syst. Ueb. iii, 148. 

 Hinmdo ct/anopyrrha, ViEiLL., Nouy. Diet. 1817, 510 ; Ency. Metli. ii, 1823, 528. 



b. liorreorum. 



mrundo rufa, Vieill., Ois. Am. Sept. i, 1807, 60, pi. 30.— Bp., Syn. 1828, 64 ; List, 1838> 

 9.— NUTT., Man. i, 1832, 601.— Woodh., Sitgr. Rep. 1853, 64.— Cass., 111. 1855, 

 243.— Cab., J. f. O. iv, 1856, 3 (Cuba).— Beew., N. A. 0. i, 1857, 91,.pl. 5, figs. 

 63-67.— Reinh., Ibis, iii, 1861, 5 (Greenland).— Gukdl., J. f. 0. 1861, 328 (Cuba). 



mrundo liorreorum, Bap.t., Frag. N. H. Pa. 1799, 17.— Bd., B. N. A. 1858, 308; Est. 1865, 

 294.— SCL. & Salv., Ibis, i, 1859, 13 (Guatemala).— Newt., Ibis, i, 1859, 63 

 (Santa Cruz, migratory). — Lawr., Ann. Lye. N. Y. 1861, 310 (Panama); 1864, 

 98 (Sombrero).— SUMICH., Mem. Bost. Soc. i, 1869, 547 (A'era Cruz).— Guxdl., 

 Oiy. 1869, 584 (St. Bartholomew).- Salv., P. Z. S. 1870, 184 (Veragua).— Hayd., 

 Rep. 1862, 161.— Coop. & Suck., N. H! Wash. Ter. 1860, 184.— Codes, Pr. Phila. 

 Acad. 1866, 72 (Ai-izona).— Coop., Am. Nat. iii, 1869, 33 (Montana).— Dall & 

 Bank., Tr. Chic. Acad, i, 1869, 379 (Alaska).— Coop., B. Cal. i, 1870, 103.— 

 FiKSCH, Abh. Nat. iii, 1872, 28 (Alaska).— Mere., U. S. Geol. Surv. Ter. 1872, 

 676. — Allen, Bull. M. C. Z. iii, 1873, 176 (Colorado, up to timber-line). — CouES, 

 Key, 1873, 113, fig. 54.— Snow, B. Kans. 1873, 5 ; and of late United States writers. 



Sirundo americana, WiLS., Am. Om. v, 1813, 34, pi. 8, f. 1, 2. — Sw. & Rich., F. B. A. ii, 

 1831, 329.— Lemb., Aves Cubae, 1850, 44, pi. 7, f. 2. 



mrundo rustica, AuD., Orn. Biog. ii, 1834, 413, pi. 173; Syn. 1839, 35; B. Am. i, 1840, 

 181, pi. 43.— GiRAUD, B. L. I. 1844, 85.— Jones, Nat. Berm. 34. 



Bab. — Var. Ttorreorum ; North and Middle America. North to Alaska. Greenland. 

 West Indies. H. erythrogaster is the^onth American form. 



Lieutenant Warren's Expedition. — 5206-8, Yellowstone River. 



Later Expeditions.— 62295-6, Lower Geyser Basin, Wyoming. 



Not obtained by Captain Eaynolds' Expedition. '/ 



In the above heading this species is retained under the name given in the Key, and ^ 

 used by nearly all later American writers, although there is no probability that it ia 

 specifically distinct from the South American form, H. erijtlirogaster. The synonymy is ^ 

 distinguished above, for convenience, and our species may stand as H. erythrogaster var. 

 horreorum, though even the varietal distinctions are very slight. 



The Barn Swallow occurs throughout the Missouri region, especially 



during the migrations, and breeds in suitable localities, although it i.s 



much less numerous than it is in most wooded and settled parts of the 



country. It appears to withdraw altogether from the United State.s in 



winter, though a few Swallows are usually among the earliest arrivals, 



in southern portions, even in February. Their great powers of flight 



enable them to pass rapidly from one country to another, according to 



the exigencies of the weather. 



There is no occasioi^here to.enten.into details of the well-known nidi- 

 Digitized by Wlicroson^s 



