()cS4 Field Museum ok Natural History — Zoology, Vol. IX. 



grayish white or buffy white, finely speckled with brown, and measure 

 about 1.06 X .79 inches. 



The Field Museum collection contains a series of fourteen sets of 

 eggs of this species taken in northern Illinois between May 17 and 

 June 21. 



Family TROGLODYTID^. Wrens. 



The Wrens are a large family numbering upwards of a hundred 

 and fifty species, but only six occur within our limits. Nearly all of 

 them possess more or less vocal ability, some, like the Carolina 

 Wren, being especially gifted. They are thicket loving birds, 

 many of the small species being rarely seen on account of their 

 retiring habits. They are insectivorous and migratory. 



Genus THRYOTHORUS Vieill. 



342, Thryothorus ludovicianus (Lath.). 



Carolina Wren. 

 Distr.: Eastern United States, west to the Plains and north to 

 southern Michigan and Nebraska, accidental as far north as Ontario; 

 breeds nearly throughout its range. 



Carolina Wren. 



