Cambridge, Mass.
1908.
Sept. 7
(No 2) 
them about together rather closely for half an hour or more.
We drove them into the thicket of old lilacs at the rear of
the house and into the crowded young hemlocks that screen
our clothes yard but they evidently preferred the rhododendrons
where they were first seen and returned to them whenever they
were permitted to do so. On one occasion, however, after
they had been left unmolested for a considerable length of
time, we started them from the brick wall of the Museum
where above the windows they had been concealed among
the leaves of the ivy that covers the entire eastern side
of the building. One of them hopped saucily along the copper
gutter or eaves trough whence it flew to the slated roof
up which it scrambled, closely followed by its mate, to
the vine clad chimney which both birds ascended among the
ivy nearly to the cap stone.
A pair of Carolina Wrens in our Garden.
  About noon as Walter & I, after losing sight of those wrens,
were still looking for them, it occurred to me to whistle an
imitation of the song. To my no small pride and pleasure,
as well as surprise, the male bird almost immediately answered
me and once well started sang almost creatively in loud
full tones for several minutes varying his notes from time to
time and giving in all at least four different phrases.
It was delightful to hear his cheery voice, so closely associated 
in my mind with the various experiences that I have had in
past years in our southern States, ringing out again and again
in the old Cambridge garden where I have spent so very much
of my life. And when both birds were hopping about among the
rhododendrons it occurred to me that a Cardinal had preceded
them there only a few years ago & had cotton seed on my window sill.
Besides their song and the scolding chatter these Wrens gave one 
other note the tick-tick-tick-tick-tick alarm cry, not unlike
that of the Winter Wren but louder. They were elusive but not really shy.
Tee-e-e-e-er, tee-e-e-e-er soft, low, musical, 
was uttered by one of these Wrens many times
about sunset, after the above page was written.