No.l.] M'CHESNEY ON BIRDS OF DAKOTA. 73 



ALAUDID^. 



Eremophila ajlpesteis, (Forst.) Boie. — Horned LarJc. 



Appears Septeinbcr 28, and is fouud in small numbers until iN'ovember 

 15, when, as a rule, it leaves tlii.s vicinity. licturns from the middle of 

 February to the middle of March, find is then found in large numbers 

 in company with the Suowbkd {Junco hyemalis), with Avhich it lives on 

 terms of the utmost intimacy, and seems to take its departure about the 

 same time, i. e., Ajiril 17. 



Occasionally the Horned Lark is observed herediuing the entire \\Tiiter 

 months, but such only occurs during mild seasons, although this biixl 

 is able to withstand considerable cold. 



SYLYICOLID^. 



Mniotilta varia, (L.) v. — Blaclc-and-wMte Creeper. 



This Creeper is seen in numbers from May 20 until the 1st of June 

 in each year, after which date its numbers rapidly diminish, and I be- 

 lieve it entirely withdraws from this vicinity by the middle of June. 



Dendikeca estiva, (Gm.) Bd. — Summer Warbler. 



This bird arrives about May 17, and remains until September 17 ; is 

 found in large numbers. Breeds here. Wherever there is timber in 

 this region, the Summer Yellowbird v/ill there greet you, warbling its 

 notes, and hopping about from bough to bough, as happy, api)arently, 

 as possible; for nothing ever ajix^ears to go wrong with the Summer 

 Yellowbird. 



Dendrgeca coronata, (L.) Gr. — Yelloiv-croicned WarUer. 



This Warbler arrives about the 10th of May each year, and is seen in 

 numbers in the thiclc foliage of the smaller trees duiing a week or ten 

 days. Does not pass the summer in this region. 



Dendrceoa blackburni-ZE, (Gm.) Bd. — BlacTcburnian Warbler. 



Occurs only as a sjjriug migrant. Arrives usually the 20th of IMay, 

 and tarries but a day or two in this vicinity before resuming its north- 

 ward flight. 



Dendrceca striata, (Forst.) Bd. — Blaclc-poll Warbler. 



Arrives about the 10th of May, and is seen in numbers until the 20th 

 of that month, after which date only a few scattering ones are met 

 with ', and I believe it does not breed anywhere in this vicinity, or, if so, 

 very sparingly, in the thick undergrowth of the v\oods. I have never 

 met with it after June 15. 



Dendrceca pennsylvanica, (L.) Bd. — Clieatnut-nided WarUer. 

 The Chestnut-sided Warbler is not common in this region. It ar- 



