Incubation, which is attended to by the female, usually begins as soon as the complement of eggs 
is complete, and continues about twelve days. 
The color of the eggs is a delicate blue, possibly sometimes spotted. They measure from .95 x 
.65 to 1.10x.80; average of forty specimens, 1.00 x .70. 
DIFFERENTIAL POINTS : 
The only nest built in Ohio, with which that of the Wood Thrush is apt to be confounded, if 
any attention at all is paid to construction, is that of the Robin, and from this it can easily be dis- 
tinguished by the fact that the latter is lined with dried grasses. The eggs may be confounded with 
those of the Cat Bird and Robin ; from the former they can generally be distinguished by the color, 
from the latter by their size. However, with some specimens, it is impossible to say whether they are 
large eggs of the Wood Thrush or small eggs of the Robin. In such cases of doubt, of course, the 
question can be determined at once if the nest is at hand. 
REMARKS : 
Though the Wood Thrush is naturally shy, she rarely abandons her nest on account of intrusion ; 
being repeatedly driven from it, she as often returns as soon as the danger is past. Cow Buntings often 
leave their eggs in her care ; on several occasions as many as three have been taken from under one 
bird. The same home is often occupied for a scries of years, the annual repairs consisting either of a 
new plastering and lining, or the latter alone. One nest in the authors’ collection shows four distinct 
yearly additions. The first three seem to have been perfect structures, the fourth consists only of an 
abundance of rootlets, making a thick lining to the nest of the previous summer. The whole was stoutly 
placed in a perpendicular fork, which enabled it to resist so well the wear and tear of the seasons. 
The plate represents a nest of the average size, and materials of construction, as they occur in 
Central Ohio. It was taken on the 30tli of May, 1877, from a haw tree, Crataegus sjiathulnta , in a damp 
wood without much undergrowth. The light fluffy leaves of the foundation, the mossy branches and 
emerald foliage, the boggy earth and rank grass beneath, together formed a picture beautiful and rustic, 
a fitting symbol of the quiet wood, the drear repose in which this brilliant songster so much delights. 
