74 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. [Vol.Y. 



rives about May 20, but soon passes on, so that by tbe 1st of June none, 

 are to be seen liere. Breeds furtber north. 



Dendkceca maculosa, (Gm.) Bd. — Blade and Yelloiv Warbler. 



Occurs during the spring migration, and usually arrives by May 20, 

 in some numbers, but soon disappears, as I have not seen any after the 

 hrst week in June. 



Dendrceca pinus, (Wils.) Bd. — Fine-creeping Warbler. 



Is seen, in small numbers only, from May 22 until about the 1st of 

 June each year ; does not breed on the '' Coteau des Prairies," to my 

 knowledge. 



SiUKUS N^vius, (Bodd.) Cones. — Water Thrush. 



May 14, 1878, while out collecting in the vicinity of Fort Sisseton, 

 Dakota Territory, I secured a single specimen of the Water Thrush. 

 This is the only one I have seen here, and its presence is believed to 

 be rare or casual. 



G-EOTHLYPis TRiCHAS, (L.) Cab. — Maryland Tellowthroat. 



This bnd occurs regularly during the spring migrations, being ob- 

 served about the 1st of June, not, however, in any numbers. It does 

 not spend the summer in this vicinity. 



Myiodioctes canadensis, (L.) And. — Canadian Fly-catching Warbler. 

 This Warbler arrives by the 22d of May, and is seen in some num- 

 bers for a few days, but appears to depart by the 1st of June, as I have 

 never observed it after that date. 



SETOPHAaA RUTiciLLA, (L.) Sw. — Redstart. 



Arrives between the 15th and 20th of May, each year, in. small num- 

 bers. Breeds and then departs. 



HIEUNDINID^. 



HiRUNDO HORREORUM, Bartou. — American Barn Swallow. 



Is found in small numbers from about May 25 until September 19. 

 Breeds about the stables and often in the deserted buildings in the 

 vicinity of the post. 



Tachycineta (Iridoprocne [*]) BicoLOR, (Y.) Coues. — White-bellied 



Sivallow. 



I saw quite a number of White-bellied Swallows at Fort Sisseton, June 

 3, 1878, and secured specimens. I did not meet with it during either 

 1876 or 1877, and do not think it regularly visits this region. 



Petrochelidon lunifrons, (Say) Cab.' — Cliff Swallow. 



Apj)ears May 4, and takes its departure about August 9 j very abund- 

 ant, and breeds here. As civiUzation advances, so does the Clift' Swal- 



{* Iridojjwcne, g. n., Coues, B. C. V. i. 1878, p. 412; type H. Ucolor, V.] 



