1010 



OF STATK 



May 5, 1895; Bicknell, April 18, 1896, April 27, 1891; Bloomington, 

 April 23, 1886, May 1, 1893; Lafayette, April 24, 1897, April 27, 

 1895; Sedan, April 21, 1896, May 5, 1889; Petersburg, Mich., April 

 28, 1888, May 10, 1893; Chicago, 111., May 6, 1895, May 9, 1896 and 

 1897. Mr. J. G. Parker, Jr., notes it as sometimes appearing there 

 by May 1. I have observed them mating by May 7 (1886), and late 

 that month and in June the nest may be found, suspended from the 

 fork of a horizontal limb of a beech, maple or other long-limbed tree, 

 usually from five to twenty-five feet from the ground. It is a beau- 



Details of structure of Red-eyed Vireo. Natural size. 



tiful, cup-shaped structure, built of various- kinds of fibres and felted 

 together with all sorts of material, chief of which seems to be leaves 

 and hornets' nests. To the outside is glued mosses, lichens and vari- 

 ous other decorations. Sometimes two broods are said to be reared. 

 They usually leave through September, but sing almost as long as 

 they remain. I found them in full song September 10, 1897. The 

 latest dates at which they have been noted in fall are Brookville, 

 September 21, 1885; Bicknell, September 26, 1896; Lafayette, Sep- 

 tember 29, 1894; Sedan, October 1, 1889; Chicago, 111., September 

 26, 1895; Warren County, September 25, 1897; Trafalgar, October 

 12, 1897. Mr. J. E. Beasley reports it from Lebanon, Ind., as late 

 as October 23, 1894. It is one of a family of very beneficial birds. 

 Prof. King examined 49 of these birds and found the principal food 

 was 56 larvae, principally caterpillars; 30 insect eggs; 67 chinch bugs; 

 32 beetles, and 6 grasshoppers. But 14 had eaten vegetable food, 

 which was probably all wild (Geol. of Wis., I., pp. 521, 522). 



