h, a little
bird which scales the trunks and branches of trees like all his family,
but which is restricted to the Rocky Mountains. Like the white-breasted
nuthatch, he utters an alto call, "Yang! yang! yang!" only it is soft
and low--a miniature edition of the call of its eastern relative.

A mountain chickadee's nest was also found, and here I heard for the
first time one of these birds sing. Its performance was quite an
affecting little minor whistle, usually composed of four distinct notes,
though sometimes the vocalist contented himself with a song of two or
three syllables. The ordinary run might be represented phonetically in
this way, "Phee, ph-e-e-e, phe-phe," with the chief emphasis on the
second syllable, which is considerably prolonged. The song is quite
different from that of the black-capped chickadee both in the intoning
and the technical arrangement, while it does not run so high in the
scale, nor does it impress me as being quite so much of a minor strain,
if such a distinction can be made in music. Both birds' tunes, however,
have the character of being whistled.

Glenwood is a charming summer resort in Colorado on the western side of
the Rocky Mountain range, and can be reached by both the Denver & Rio
Grande and the Colorado Midland Railways. Beautifully situated in an
open mountain valley, it possesses many attractions in the way of
natural scenery, while the cool breezes blow down from the snow-mantled
ranges gleaming in the distance, and the medicinal springs draw many
tourists in search of health and recuperation.

My purpose, however, in visiting this idyllic spot--I went there from
Red Cliff--was not primarily to view the scenery, nor to make use of the
healing waters, but to gratify my thirst for bird-lore. Having spent
some weeks in observing the avi-fauna east of the range, I had a
curiosity to know something of bird life west of the great chain of
alpine heights, and therefore I selected Glenwood as a fertile field in
which to carry on some investigations. While my stay at this resort was
all too short, it was of sufficient length to put me in possession of a
number of facts that may prove to be of general interest.

For one thing I learned, somewhat to my surprise, that the avian fauna
on both sides of the Divide is much the same. Indeed, with one
exception--to be noted more at length hereafter--I found no birds on
the western side that I had not previously seen on the eastern side,
al