1012 REPORT OE STATE GEOLOGIST. 



1878 (Dury and Freeman); Lake County, Ind., September 25, 1875 

 (Coale); Chicago, 111., September 15, 1895 (Parker). This species 

 has the size and general appearance at a, little distance of the Warbling 

 Vireo. No doubt it is often passed by because it is thought to be 

 that bird. In the spring it is generally found, with us, in the denser 

 woodland, where the Warbling Vireo never goes; but in the fall, in 

 the trees, and among the bushes along streams, both species are some- 

 times seen. 



Mr. William Brewster says its song is nearly identical with that 

 of the Red-eyed Vireo. "The notes are generally pitched a little 

 higher in the scale, while many of the utterances are feebler, and the 

 whole strain is a trifle more disconnected." According to Dr. Jona- 

 than Dwight, Jr., the speed at which the Red-eyed Vireo utters its 

 song is approximately twice that of the Philadelphia. Their food is 

 principally insects. 



*249. (627). Vireo gilvus (VIEILL.). 



Warbling Vireo. 

 Synonym, WARBLING GREENLET. f 



Adult. Above, olive-gray, brighter on the rump, sometimes grayer 

 on the head, wings and tail$ with more or less distinct olive edgings; 

 whitish stripe over the eye. Below, white, breast sometimes tinged 

 with greenish or buify; sides slightly washed with olive; first primary 

 very short, from a half inch to a.n inch long. 



Length, 5.00-5.50; wing, 2.65-2.95; tail, 2.10-2.40. 



Note. The short first primary and the absence of the yellow lower 

 parts serve to distinguish this species. 



RANGE. Eastern North America, from Mexico (Oaxaca) north to 

 Manitoba and Hudson Bay. Breeds throughout its United States 

 range. Winters south of the United States. 



Nest and eggs similar to those of V. olivaceus, but usually placed 

 higher. Eggs, .74 by .55. 



The Warbling Vireo is the first of that family to arrive in southern 

 Indiana, preceding the Red-eyed a few days. It is first observed among 

 the elms, cottonwoods and sycamores along streams, which are choice 

 places for it at all times. A little later it appears in orchards and lawns, 

 and even frequents the well-shaded streets of towns. Its presence is an- 

 nounced by a beautiful song that comes frorn the top of some tall 

 cottonwood, while the author often is invisible. Soon, however, an 

 insect tempts him, and with a quick movement he collects it and 



