Arctic Bluebirds. I found an egg in an open space surrounded by snow. Probably a junco's. Shot a junco and robin. Skinned birds. SUNDAY June IO:- This morning I collected N/8 of Mountain Chickadee from nest built on a joist of the cabin. The space had been filled with material. Nest 10 inches long and 7 I/2 inches wide and rectang- ular in shape. A solid mat of cow-hair, squirrel's fur and hemp picked up around the dairy. Nest 2 I/2 inches high. Cavity 2 I/2 inches across and I I/2 deep. I egg spotted, one with a trace and six pure white. Eggs 3 or 4 days incubated. Female parent collected. We struck out for Pyramid Peak at 9:30. Just out- side the corral I shot a female Audubon's Warbler which had been flying about with its mate. It lodged in a red fir and in looking for it I saw the nest about I5 feet up near the end of a drooping limb. Collected the nest and four eggs; incubation a few days only. Eggs more heavily marked than is usual with this spec- ies. Nest measured 5x4 inches outside. Cavity I 3/4 in diameter and I I/4 deep. Outside composed of weed and plant stems; inner section of fine bark strips and fine grass; lining of horse-hair and feathers, one jay feather being quite conspicuous. Eggs marked with umber and lilac, heavily confluent about the large ends. Shot a Junco and then we began the ascent. It was very rough climbing. Took a view of the Peak from down the hill. Leroy found a Red-shafted Flicker's nest in a pine stub at about 9,200 ft. altitude, with six eggs, almost fresh. Also an Arctic Bluebird's nest with one egg; nest also in a stub. The Clarke's Crows were as noisy as ever in their particular canyon of hemlock. The red firs give out at 9,000 ft. and hemlock and the white-bark pine,- the latter extending up to within a mile of the summit, becoming smaller and smaller. The last eighth of a mile is boulders,- a mass of great rocks scattered about in confusion, over which one must climb slowly. We all felt the alti- tude, the worst symptom being a headache. On the rocks ve saw two pairs of Gray-crowned Leucostictes flying about uneasily. Secured one pair. We reached the summit t 3 o'clock and remained an hour, enjoying the superb