THE NATURAL HISTORY SURVEY. 183 



Thryomanes hewiohii Eidgway, Bull. Nutt. Orn. Club, II, July, 1877, 



60. 

 Popular synonyms : LoNa-TAiLBD House Wben. Long-tailed Ween. 



Bewick's Wren must be included in the avifauna of our 

 region because of the record of Mr. E. W. Nelson, who says: 

 "Rare summer resident. A pair of these birds appeared in a 

 vacant lot in Chicago the first of June, 1876, and taking posses- 

 sion of a convenient corner in the roof of an arbor proceeded to 

 raise their young. At intervals through the day, the male would 

 mount to the top of some house, or to the topmost twig of a tree 

 in the vicinity, and sing for an hour or more. The family sud- 

 denly left about the middle of July." 



While I have no other records of the appearance of this 

 Wren within our limits, I can see no reason why it should not, 

 at least occasionally, frequent the vicinity of Chicago. Mr. Ridg- 

 way says:* "In most parts of southern Illinois, this is the 

 House Wren, par excellence; and even in localities where the 

 true House Wren {Troglodytes aedofi) occurs Bewick's Wren 

 is far the more numerous of the two." Because of the above 

 records, it is very important that all observers should constantly 

 have Bewick's Wren in mind as a possible visitor to our vicinity. 

 It is quite erratic in its habits and is unknown in many localities 

 within its general range. 



The range of this Wren includes the United States, east of 

 the Great Plains and eastern Texas, and chiefly west of the 

 Alleghany Mountains and south of southern Pennsylvania. In 

 the Mississippi Valley it is found as far north as central Minne- 

 sota. It is a migrant only in the more northern part of its range. 

 It has been observed in southern Michigan, northern Indiana and 

 northern Illinois. 



Genus TROGLODYTES Vieillot, 1807. 



Troglodytes aedon Vieillot. House Wren. 



Troglodytes aedon Vieillot, Ois. Amer. Sept., II, 1807, 52, pi. 107. 

 Popular synonyms: Wood Wben. Shoet-tailed House Ween. 



At the present time the House Wren is certainly a very rare 

 visitant to our area. The only specimen of this species that I 

 have seen from our vicinity is one taken by Mr. Graham Davis 

 in Hyde Park, Chicago, on May 16, 1886. This specimen is in 

 the collection of The Chicago Academy of Sciences. Mr. Amos 



*Ornitliology of Illinois, Vol. I, 1889, 92. 



