singing in her high pitched voice somewhere behind me. Browne, perhaps on account of this double attraction, now made a long downhill glide to land near me and run the rest of the way. The worms received his attention before he went to look up Nova. He takes none of them to her. I worked in the garden near Rhody and until 4 P.M. he remained in the ceanothus; he then started in the direction of his night roost. He had not sung all day and if he visited R5, I did not see it. His remaining quietly in one spot for about 4 hours illustrates the ease with which road-runners can render their presence in any given habitat difficult to detect. From 3:30 P.M. yesterday to the same time today the humming- birds' consumption of the food mixture was measured. "Big" (the adult) consumed approximately 19 c.c. "Little" (the immature one) " 18 " There is, of course the possibility that some of it was splashed away, but there was no evidence of it. Also, as they wipe their bills frequently, some of it un- doubtedly was dissipated in that way. With this weaker mixture the consumption of water is much less; corresponding probably to the increased intake of the weaker food. February 11th. Light rain in the night and at intervals throughout the day. As I passed the roost tree at 10:30 A.M. Rhody was sitting in his house. At 11:30 he was in the clearing, dry except for beads of moisture on his plumage which had not coalesced. Gave him meat. As I drove past at 2:30 P.M. he was sitting at his post on the edge of the bank of the west lot. At 3:30 P.M. he was stowed away in his house and would not yield to temptation in any form, but stuck there not interested in the slightest in any of my offerings. As far as my observations went, this was a day of almost complete inactivity on his part. February 12th. Cludy in the early morning with sun trying to break through. Rhody not in his house at 10 A.M. and not in sight. I searched for him about 15 minutes beginning 10:30, but did not go into the brush of the west lot. The search ended at the sage-brush patch at the glade, where I stood looking off over the open field to the south. Glancing behind me, I discovered Rhody about 6 feet away walking up to me with a twig in his bill. He dropped it and whined. R5, from the cage 50 or 60 feet to the north now rattle-boed loudly, having been silent (as usual) all the morning. As his mouse was uneaten and Rhody plainly wanted one either to eat or to use as a love-token, it seemed a good time to try to get R to go into the cage, get a mouse there an see what happened. He followed me to the tool-house, expecting to get his mouse there, but I now went to the cage and he followed. I was unable to induce him to follow me in; he merely stood stock-still looking at me. R5 had now retreated to one of the "arm-chair" roosts where he assumed sleeping posture and merely