Grinnell -1915 Yosemite Cal. Parents we made our way to the edge of the pond, thru the marshy grass and saw four short-tailed young Blackbirds, which had left the nest but were still in the bush. June 18. Our chipping sparrow nest today contains four very young, evidently just hatched. The skin of the young is dark purplish red and the natal [illegible] is dark gray, which makes them quite inconspicuous in their cedar-shaded nest. This noon as we sat at lunch under a black oak by the school house I heard a commotion among the black birds in the meadow. Going over to the fence, I saw four black birds flying around the head of a gray squirrel which was dodging about in the grass at the base of a clump of black berry bushes! The birds were scolding angrily and pecking violently at the air a few inches above the