336 



OHIO EXPERIMENT STATION. 



her 20. It is found principally in woDdlands and thickets, both on the uplands and 

 the bottoms, not being so frequently as the preceding species observed along the 

 streets of the towns. 



This species is, of course, regularly in song during the season of its occurrence in 

 spring, and has been heard singing in October fully as well as during the vernal 

 migration. 



SUBFAMILY POLIOPTILIN/E. GNATCATCHERS. 

 GENUS POLIOPTILA SCLATER. 



176. Polioptila cserulea (LINN.). 

 Blue- gray Gnatcatcher. 



A common summer resident. It arrives ordinarily during the latter part of 

 April, the nineteenth of this month being the earliest date recorded. It has not been 

 observed later than August 3, yet it probably does not leave until September. 



Throughout the breeding season it affects chiefly the upland woods and the tim- 

 bered ravines adjacent. Nest-building begins about the middle of May, or even some- 

 what earlier, and by the middle of June nearly all the nests contain young. Ap- 

 parently no second brood is regularly reared, but should the first nest be destroyed, 

 another is commonly constructed. 



The measurements of two nests are as appended : 



The well-known scolding note of this species is most conspicuous from April 

 to about the middle of July, being subsequently comparatively seldom heard. The 

 real song of the Blue-gray Gnatcatcher has, in this locality, been detected upon only 

 a single occasion, August 3, 1890 It is a simple but pleasing ditty, in quality rather 

 suggestive of the songs of some Warblers. It consists of one or two introductory 

 notes, followed by a short warble ; and the whole may be represented, very imper- 

 fectly of course, by the syllables zee-u, zee-ii, ksee-ksee-ksee-ksii. 



FAMILY TURDID^E. THRUSHES, SOLITAIRES, BLUEBIRDS, ETC. ,, 

 SUBFAMILY TURDIN/E. THRUSHES. 

 GENUS TURDUS LINNAEUS. 



SUBGENUS HYLOCICHLA BAIRD. 



177. Turdus mustelinus GMEL. 

 Wood Thrush. 



An abundant summer resident from April 21 to September 27. It may, in general, 

 be regarded as a somewhat more numerous inhabitant of the woods on the bottoms 



