THE BAY-BREASTED WARBLER ON MT. MONAD- 
NOCK, NEW HAMPSHIRE, IN SUMMER. 
Charles L. Whittle. 
On the southeast slope of Mt. Monadnock, at an elevation 
of approximately 1,450 feet, a male Bay-breasted Warbler 
(Dendroica castanea) was discovered July 17, 1921. The 
bird sang at short intervals from near the top of a large 
red spruce for several hours, with occasional more or less 
protracted intervals when he would fly to other parts of the 
grove or descend to a lower position where he rested and 
preened his feathers. He sang much of the time from a 
particular tree and from a particular perch on that tree, 
in fact having a “singing tree” and a singing perch. This 
perch was about five feet below the top of the tall spruce 
and close to the outer end of a small branch, where he would 
sit for several minutes at a time and devote himself exclu¬ 
sively to song. At other times he would investigate the 
upper part of the singing tree or neighboring trees for 
food, singing as he searched. 
When first heard, his song was mistaken for that of a 
Black and White Warbler, although possessing less of the 
see-saw character than that bird’s common song. Chapman, 
Warblers of North America, quotes Farwell as follows: 
“The Bay-breast’s song is a poor, weak, saw-filing note.” 
The song also suggested one of the variations of the Red¬ 
start’s. The notes of the three songs appear to have about 
the same length, and they are sung rapidly with only a 
slight accent, and the duration of the longest variation did 
not much exceed two seconds. 
Several hours were devoted by our party of four to a 
search for the female and the nest, but without success, 
and opportunity to continue our investigations did not occur 
again until July 29, when Mrs. Whittle and I revisited the 
spruces. As we entered the grove we heard about us the 
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