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" Nov., I9O 7 FROM BOULDER TO TIlE SEA 175 wrong fork. The banks of the stream had now become so precipitous that we were compelled to make our way thru the heavy undergrowth and over the countless logs of fallen trees. It was at this point we came on a nest prettily tucked in a natural cavity in the bark of a giant redwood. It proved to be that of a Western Flycatcher (Emlbidonax di?ffcilis) and was made of moss and bark strips and decorated with lichens and spider webs. The nest contained four young about one-third grown. While adjusting the camera the parents flitted nervously from XVATER OUZEL'S NEST (UPPER LEFT-HAND CORNER) ON HEAD-WATERS OF BOULDI?R CRI?EK branch to branch, uttering a feeble call note. But we soon left them and their tiny home in peace; for about this time we had troubles of our own. Having nearly lost the camera on one occasion we did not favor retracing our steps, so after some deliberation decided to journey straight over the hillside to the west. At least we thought it west, but the day was very cloudy and we lost our bearings; for after plodding along several hours we crossed a trail which showed we were heading for ?he e. ast, An hour's walk on this trail brought us to the western edge of the great