122 BIRDS OF SOUTH DAKOTA 
619. CEpaR Waxwinc (Bombycilla cedrorum.) 
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 ona 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 Ist. 
FAMILY LANIIDA. 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 VIREONIDZE. 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. ReED-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 
