454 RAMBLES ABOUT HOME. 



of Mercer County, New Jersey, there remains a difference 

 only of seventy-seven species between those observed by 

 Dr. Turnbull in "that part of Pennsylvania eastward of 

 the Alleghany Mountains, and of New Jersey, including 

 the coast-line, which extends from Sandy Hook to Cape 

 May," and those that I have seen in a very limited portion 

 of the valley of the Delaware. 



Wood- Thrush. Turdus mustelinus. 



Strictly migratory, and sensitive to frost. Arrives early in April, 

 if the weather is warm, and remains until November. It is more 

 irregular than any other of our thrushes. 



Hermit-Thrush. Turdus pallasii. 



** Not uncommon. It arrives in April, and again late in October 

 on its way south, when it is more abundant along the sea-coast. . . . 

 A few have been observed during winter when that season has been 

 open and mild " (Turnbull). They also remain, in scanty numbers, 

 during summer, and breed. Wissahickon Creek, June, 1883. 



Olive-backed Thrush. Turdus Swainsonii. 



" Rare. It arrives in the end of April. A few also of this spe- 

 cies have been seen in winter " (Turnbull). I have not found this 

 thrusb to be at all " rare," but very irregular in its appearance. 



Wilson's Thrush. Turdus fuscescens. 



Resident, or but partly migratory. It is not unusual to see them 

 during the winter, if the weather is mild. At such times they seek 

 shelter from the wind, and congregate largely on wooded slopes 

 having a southern exposure. 



Robin. Turdus migrator ius. 



This familiar species is wandering, rather than migratory. They 

 are as abundant in January as in June ; indeed, often much more so. 



Brown Thrush. IlarporTiynchus rufus. 



Migratory. Often appears as early as April 1st. " A few re- 

 main during mild winters " (Turnbull). 



MockiDg-Bird. Mimus polyglottus. 



Rare. A pair of these birds have for two years past nested in 



