^Vo.l.] M'CHESNEY ON BIRDS OF DAKOTA. 81 



Ttranntjs vekticajlis, Saj.— Arkansas Flycatcher. 



Is found from May 22 until September 9 in considerable numbers ; is 

 associated witli the preceding species, but is not nearly so common. 

 Breeds liere. 



CoNTOPUS viRENS, (L.) Cab. — Wood Pewee. 



Arrives about the loth of May in numbers, and is seen until June 0, 

 when it takes its departure. Does not breed in this vicinity, to my 

 knowledge. 



OAPEIMULGID^. 



CnoRDiLES viRGTNiANUS, (Gm.) Bp. — ¥ight-haivl: 



The typical C. virglnianus malvcs its appearance about INIay 25, and 

 remains until September. Is seen in large numbers, and breeds here. 

 This bird often builds its nest on the bare ground, with scarcely any 

 protection from winds or rains. I have also observed it build in a shal- 

 low excavation in a large bowlder, just the place to get the full benelit 

 of all the rain at that season of the year. 



TEOCHILIDiE. 



(?) Trochilus colubeis, Linn. — Buhy-fhroafed Humminghird. 



A single Hummingbird seen at Fort Sisseton, September 11, 1877, 1 

 place under this head with a doubt. The specimen was not secured, and 

 I did not have an oj^portuuity of observing it closely, as it was almost 

 constantly in motion, flying from flower to flower. 



CTJCULIDiE. 



CoccYGUS ERYTHROPHTiiALMUS, (Wils.) Bp. — BlacJi-MUed Cuclcoo. 



The Black-billed Cuckoo reaches this region by the end of May and 

 remains until the end of September. Its notes are occasionally heard, 

 but the bird is not common. It undoubtedly breeds here. 



The specimen measures as follows : 



No. 695, 9, 16.00 X 11.90; Aviug.5.60; tail 6.40. 



PICID^. 



Picus viLLOSUS, Linn. — Rairy WoodpecJcer. 



The typical villosus is a regular winter resident ; it can be seen and 

 beard on the coldest days pecking away at the trees. I have never 

 observed it during the spring and summer months, and i)resume it de- 

 parts on the approach of spring. I do not believe it breeds in this Ai- 

 cinity. 

 Melanerpes erythrocephalus, (L.) Sw. — Red-headed WoodpecJcer. 



Appears early in May, and remains until the end of September ; is 

 found in small numbers ; breeds here. 

 BuU. V, 1 G 



