Grinnell -1915 16 Yosemite, Calif. bird in the meadow and that the fledgling escaped by flutter- ing across a pool of water and into the bushes. June 19 This morning we discovered a go. black-headed grosbeak's nest in the branches of a slender Rhamnus bush by the roadside. The brush had been cleared a few days ago and the land-clearers had left standing the single bush which held the nest, so it was exposed to the views of passers-by. Our attention was attracted to the nest by the loud singing of the male, who was brooding the four small young. The young still had their eyes closed and their flesh was yellowish-pink. The natal down was heavy, about 1/4 inch in length and white. When we passed by again at sunset the mother was brooding. The nest was about three