is bearing down upon Bb (Nb not see this morning--now 12:30 P.M.) and has been seen to chase Bb four times determinedly, two of the pursuits beginning at my feet. Bb has shaken off his pursuer each time, but is plainly nervous, even when B is not in sight. Each time he comes back to the oval lawn--a pathetic little figure in his lone- someness. Man seems to be the only friend that he now has. 2:22 P.M. Immediately following is a record beginning about 1 P.M. at which time Bb came to me for worms at the fig tree (now ripening its third crop for the season). Hearing B near at hand in the glade, I went there and he came out for his share and for the next three- quarters of an hour, more or less, sang continuously ranging from half to three-quarters song, at distances varying from 3 to 10 feet. from me. This was one of his masterly performances in which appeared nearly all of his imitations, together with a bewildering variety of his own compositions. The remarkable features of this performance are two; viz: variety of musical phrases and variety of quality of tone (timbre). The former is understandable, but it is difficult to comprehend --without knowledge of the anatomy of his vocal organs-- he is able possibly also with that knowledge--how [illegible] to produce such striking contrasts in tone qualities. Within my limited range of experience, in these two respects Brownie surpasses all other birds immeasurably. In these respects the mocking-bird is far outclassed. B goes after Bb. The song ended by his suddenly departing in the direction of the oval lawn. The impression given that he had just remembered that he had not paid his respects to Bb for some time. I went there and discovered Bb first. B could not see him from where he was eating at the feeding station. However, he soon placed him and began a rather mild pursuit during which Bb for a few moments took refuge at my feet. The chase did not depart from the immediate vicinity and wound up by both birds disappearing in the surrounding shubbery. Search revealed Brownie first, sitting with closed eyes in a Fremontia. He