122 BIRDS OF SOUTH DAKOTA 



619. CEDAR WAXWING (Bomby cilia cedrorurn.) 



A little smaller than the Bohemian, and more uniformly 

 brownish gray in color. A common migrant, occasionally nest- 

 ing. In migration these silent birds have the habit of sitting in 

 a row on a limb. They are always in close flocks of a dozen or 

 so, and impress one as being very much attached to each other. 

 In 1919 a few pairs nested in the vicinity of Vermillion. The 

 young were full grown by August 1st. 



FAMILY LANIID^E. SHRIKES 



The Shrikes are commonly known as Butcherbirds. They 

 kill smaller birds and mice and hang them upon a hedge thorn 

 or the barb of a wire fence. Flies then lay their eggs in the fresh 

 meat, and the maggots are dainty morsels for the Butcher. 



621. NORTHERN SHRIKE (Lanius borealis.) 



About the size of a Blue. Jay; bluish gray, with black 

 wings, tail and eye line. Margin of tail and wing spots white. 

 The white under parts are dotted with wavy bars. 



622a. WHITE-RUMPED SHRIKE (Lanius ludovicianus excubitorides.) 



A common summer resident. Similar to the Northern, 

 but smaller, and without the wavy bars on the breast. Fre- 

 quently seen on telephone wires or wire fences by the roadside. 

 Nests in low bushes and brush heaps. 



FAMILY VIREONID^E. VIREOS 



The Vireos or "Greenlets" keep well among the foliage, 

 some of them to the high tree tops. Their colors are not con- 

 spicuous, being for the most part olive green above and whitish 

 below, and their songs attract little attention. The nest is a 

 neat, pendent cup, the upper edge being lashed closely around 

 the fork of a horizontal twig. The Vireos all have the "Fly- 

 catcher bill." 



624. RED-EYED VIREO (J'ireosylva olivacea.) 



This bird lives for the most part in the upper third of 

 high trees. He may be recognized by the distinct white line 

 over the eye, a black line separating it from a gray crown. His 



