CONCORD. 
1893 
0 30 
Ball* s Hill 
Northern 
birds 
nearly all 
gone 
Yellow- 
throated 
Vireo*s nest 
[To Ball* s Hill by canoe at 9 A. M. Spent most of 
the forenoon working along the shore of the Blakeman land, 
trimming and cutting out trees. In the afternoon walked to 
Holden's Hill where I spent an hour or more. Birds sang 
freely in the morning before the wind rose but afterwards 
there was but little singing even at sunset when, however, 
I heard Robins, Maryland Yellow-throats, a Mniotilta, a 
Redstart, etc. 
The Brown Thrashers were singing vigor/ously this 
morning. I heard two on the way down river and my bird 
near the cabin was in full song when I landed, the only time 
he has favored me in this way for a week or more. 
I could find no We/ter Thrushes to-day and the only 
northern migrants noted were a Black-poll in full song 
and a silent Olive-backed Thrush, both in the belt of bushes 
along the river at the base of Ball’s HillT} 
For a week or more a Yellow-throated Yireo has sung 
in the early morning and at intervals through the day in 
the elms in front of the house. He seems to spend prac¬ 
tically his entire time in these trees. Indeed, I do not 
remember once hearing him elsewhere in the neighborhood, 
even in the orchard. This morning it occurred to me to look 
for the nest and almost at the first glance I discovered 
it suspended after the usual manner in the fork of a short 
branch that grew out from one of the big upright stems of 
the elm about 20 feet above the ground. One of the Yireos, 
