l8o THE CHICAGO ACADEMY OF SCIENCES. 



the wings which were conspicuously displayed during flight 

 especially just before alighting. 



"The warm wind coming from the south, accompanied with 

 a high velocity and elevated temperature, doubtless accounted 

 for the presence of this bird here, along with the great number 

 of the migrants which came at the same time. The temperature 

 of that day, which is herewith appended, offers confirmation of 

 the fact that this rare southern visitor into our northern latitude 

 was not a cage bird. 



"The hourly temperature readings from midnight to three 

 o'clock in the afternoon is as follows : 



Midnight, 64 Eight A. M., 64 



One A. M., 63 Nine A. M., 69 



Two A. M., 62 Ten A. M., 72 



Three A. M., 61 Eleven A. M. 74 



Four A. M., 60 Twelve A. M., 75 



Five A. M., 60 One P. M "jj 



Six A. M., 61 Two P. M 78 



Seven A. M., 62 Three P. M., 78 



"I saw the Mockingbird first at eleven o'clock in the morning, 

 when the temperature was 74 degrees Fahrenheit. The next day 

 the temperature dropped rapidly so that at one o'clock in the 

 afternoon it fell to 36 degrees, causing, as might be expected, 

 considerable suffering among the more delicately constituted 

 migrants." At Millers, Indiana, on the eighth of May, 1905, 

 Mr. Frank C. Baker and myself observed a pair of Mocking- 

 birds in the long line of thickets just east of the first ridge of 

 dunes. We did not disturb the birds, hoping that they might 

 nest and breed in that locality. 



The range of the Mockingbird includes the southern United 

 States from Mexico north to southern Maryland, southern Ohio, 

 southern Indiana, southern Illinois, Colorado, and southern Cali- 

 fornia. North of this area it is rare or of very irregular appear- 

 ance as far north as Maine, Ontario, northern Illinois, and 

 Wyoming. 



Genus GALEOSCOPTES Cabanis, 1850. 



Galeoscoptes carolinensis (Linnaeus). Catbird. 



Muscicapa carolinensis Linn^tjs, S. N., ed. 12, I, 1766, 328. 

 Galeoscoptes carolinensis Cabanis, Mus. Hein., I. 1850, 82. 

 Mimus carolinensis "Gray," Scl., P. Z. S., 1856, 294. 



