BIRDS OF SOUTH DAKOTA 99 



a very erect attitude, and was distinguished from other fly- 

 catchers of similar size by its relatively short tail and robust fore 

 part of the body. The dark grayish sides were very distinct, and 

 stood out in strong contrast to the median line of white, which, 

 however, showed a noticeable tinge of yellow or straw color. 

 This field record was made jointly by Dr. Rich, Messrs. Allen, 

 Anderson, Ludcke, and the writer. Visher lists this species as 

 a "rare migrant" for Clay county, and we grade it in the same 

 terms for Union county. 



86. Wood Pewee. Myiochanes virens. A common summer 

 resident. 



87. Acadian Flycatcher. Green-crested Flycatcher. Em- 

 pidonax virescens. A specimen was taken on June 2, 1918, in 

 the McCook lake woods.^ We do not know much about the 

 abundance of this species here, but it is believed to be rather 

 uncommon. 



88. Least Flycatcher. Empidonax minimus. Noted on May 

 12 and 15, 1918 (Allen), and ou May 17 and 20, 1918 (Steph- 

 ens). This is a tolerably common species here and, no doubt, 

 breeds. 



88. Prairie Horned Lark. Otocoris alpestris praticola. 

 This is a common species throughout the year. Mr. Allen has 

 seen it in IMarch, in the plowed fields near IMcCook lake in num- 

 bers estimated at about seventy individuals. It is one of the 

 earliest birds to breed. 



89. Bluejay. Cyanocitta cristata. A common summer res- 

 ident. 



90. Crow. Corvus hracJiyrhynclws. A common resident. 



91. Cowbird. Molothrus ater. A common summer resident. 



92. Yellow-headed Blackbird. Xanthocephalus xantho- 

 cephalus. An abundant migrant, which also breeds in the upper 

 end of Goodenough lake. 



93. Red-winged Blackbird. Ag&laius phoenicius. A com- 

 mon summer resident. 



94. Western Meadow Lark. SturneUa neglect a. A com- 

 mon summer resident. 



^The determination of tliis specimen was verified by Dr. H. C. Oberholser. 



