74 Birds Every Child Should Know 
and yards and yards of fine caterpillar silk, 
by which the nest is hung from its slender fork 
in the thicket. It also contains, not infre- 
quently, alas! a cowbird’s most unwelcome egg. 
THE YELLOW-THROATED VIREO 
In a family not conspicuous for its fine 
feathers, this is certainly the beauty. The 
clear lemon yellow worn at its throat spreads 
over its vest; its coat is a richer and more 
yellowish green than the other vireos wear, and 
its two white wing-bars are as conspicuous as 
the white-eyed vireo’s. Moreover its mellow 
and rich voice, like a contralto’s, is raised to 
a higher pitch at the end of a sweetly sung 
triplet. ''See me; Fm here; where are youV the 
singer inquires over and over again from the 
trees in the woodland, or perhaps in the village 
when nesting duties are not engrossing. Don’t 
mistake it for the chat simply because its 
throat is yellow. 
As this is the beauty of the family, so is it 
also the best nest builder. 
THE WARBLING VIREO 
High up in the top of elms and maples that 
line village streets where the red-eyed vireo loves 
