FAMILY Turdide. 
U 
A 40 oy 7 
fay Pa 
V7 O eg FF % 
- The higher tones of this Thrushare, like 
those of the Wood Thrush decidedly harmonte. ees 
He tries a higher key as he advances,— and finally goes lo pieces in 
the high register 2s abovef 
There are two ways of presenting the Olive-back’s song, 
either of which is correct; there is a very slight overtone 
to the notes, and each one of the groups is rather closely 
connected with the next; therefore my following nota- 
tion taken of a song heard in the Franconia Mountains, 
in June, need not be considered essentially different 
from the previous notations obtained in another locality 
nearly a month later. 
Again, the next is a memorandum taken near Arlington 
Heights, Mass., where, on May 234d, the bird sang while 
on his way to his home in the spruce forest far in the 
north, 
254 
