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Mar., 19!2 NESTING OF THE CANADA GOOSE AT LAKE TAHOE 71 the spring, when the ice breaks up, such n?ammals as happen to be on it find themselves isolated; and it is to such of these as find in the surrounding waters an impassable barrier that the animal life is limited. I found the goose colony to consist of but a single nest, placed on the bare rock at the foot of a giant Jeffrey pine near the water's edge. It was made entirely of pine needles, with the usual down-lining, and held an addled egg, while numer- ous empty shells lay strewn about. The parents were noticed about half a mile down the bay. Two days later at Rowland's Marsh, I located another goose nest with the small complement of two eggs, one infertile and one from which the chick was just emerging. The nest was placed against a fallen log, and besides the lining of down was composed entirely of chips of pine bark, a quantity of which lay lq'ig. 25. NEST OF CANADA GOOSE; ROWLAND'S MARSH, LAKE TAHOE near. From the variety of material used in the composition of the nests found, it seems evident that the birds have little or no preference for any particular substance, but use that most easily available. On the day after the arrival of Messrs. Carriger and Littlejohn (June 5), a tramp was taken along the Little Truckee River. This, ordinarily, is a stream of moderate size, but now, with the rush of water from fast roeRing snow, had become in places as wide as half a mile. Some distance up this stream we flushed a pair of geese, which from their actions I judged to have a nest somewhere in the immediate vicinity. After a careful search we came to the conclusion that it must lie somewhere on a group of small inaccessible islands now partially sub- merged by the rapidly rising waters. Littlejohn followed the pair farther up stream, and, losing them for a time, was surprised to see one suddenly take wing