ERVESA UID UB O.NUBOUECE TEN 15 
While engaged in watching this bird we noted a female Black-and- 
White Warbler and saw it disappear behind a small knoll. After wait- 
ing several minutes we moved carefully so as to be able to view the spot, 
and saw the bird squatting and “frozen” where the ground was quite bare 
of concealing vegetation. We do not recall another instance of a warbler 
(except a bird on the nest) attempting to avoid observation by immobility 
rather than flight. 
On another occasion, coming out of a tamarack swamp, where we had 
spent two or three hours, and, where, unexpectedly, we had found a Her- 
mit Thrush’s nest in the deepest part of it, we came on what we believed 
to be a partly built nest in a stand of balsams on one of the “hammocks” 
where a male was singing. “lhe tamaracks near at hand were decorated 
with Usnea, but not in bunches or masses large enough to conceal and 
support the typical nest of the Parula. Hence, moss taken from the tama- 
racks while wet had been placed on and near the ends of interlaced, flat 
balsam boughs, to which, drying, it adhered. In this mass a nest hollow 
or pouch had begun to take form. Unfortunately, after the nest had been 
found, work on it was abandoned. 
But perhaps our most intense effort in the study of the warblers had 
again to do with the Connecticut. After our experience with this specie 
in the National Forest and after Mr. Jung’s departure, we located a 
tamarack and sphagnum swamp where we could hear three birds singing 
at one time in different parts of this area. “They sang the “‘chip-a-ticket”’ 
song with which we had been made acquainted. However, two other birds 
sang a quite different song, ché-cha-cha, ché-cha-cha, ché-cha-cha, with a 
pause between the quickly uttered phrases and the accent on the first note of 
each. “This was a loud ringing song which was sometimes rendered cha- 
ché-cha, ché-cha, ché-cha-cha, or possibly, cha-cheécher, cheécher, cheécher- 
cha. One of the birds with the different song was under observation on 
a number of days for a total of about eight hours. He was seen once 
at a distance of 12 feet on a low branch along which he walked. He was 
not typically a Connecticut Warbler. His feet were a very bright flesh 
color; his underparts below the breast were canary rather than straw yel- 
low, and the eye-ring, although whitish, was not conspicuously so. When 
singing, the mandibles were opened very wide. His choice of singing 
perch was the exposed top of a dead tamarack, whereas other Connecticut 
Warblers sang from concealment among the branches. It was planned to 
collect this bird before leaving the region, but circumstances prevented. 
It was impossible to go afield in this unspoiled region without some 
stirring, if small, adventure. For example, we had been attracted by the 
song of the Short-billed Marsh Wren to a wet, willow-dotted meadow 
beside the lake. “Iwo pairs were established there and one of the nests 
was found. It was of the substantial character supplied by old grasses 
rather than of the character of the green grass structure of the mock nests 
