May 9th. A good deal of early morning song. About 2:30 I thought I heard sounds of changing shift and it seemed a good time to see if the egg had hatched. When I got there the nest was entirely empty, but Brownie came and sat in it as if everything were all right. I then went down into the chaparral to see if there were any signs either of the egg or of a young bird, and finally found the large end of the shell, but none of its contents. The appearance of the shell indicated that it had hatched normally, and I believe that the young bird was carried off by a jay during temporary absence of the parents. I was working near there all the morning and heard no disturbance. The egg was in the nest at 6 P.M. yesterday. The road runner was back again yesterday and today, but silent. May 10th. Much early morning song. Also the road runner was heard at the same time. I had thought his singing period was over and that he had either found a mate, or had given up the attempt. Brownie has been singing full song at intervals all during the morning. 12:30 P.M. Brownie seems to have had his tongue loosened by the bereavement and has taken a fancy to singing near the oval lawn. 5 P.M. B has been singing full song beautifully much of the afternoon. Part of the time at a new station near the oval lawn, where I could listen to him comfortably at a distance of about 25 feet. He has many new phrases and much of his song was more like that of the mocking bird than previously noted. He has developed a new stunt. He takes up a convenient location and sings. When his mate comes, he moves off and sings at another p place, and when she follows, repeats the performance. It gives ong