to see a road-runner drop down to the road from a tree ahead of us, run toward us and turn off to one side. When we reached the th place where he disappeared we found him sitting calmly on the stone wall that supports the road, showing no sign of fear, not more than 15 feet from the car. When we stopped the car by him he continued to sit there, so I got out to see what he would do about it. This was too much for him and he sailed down from the wall, but not in panic. In the past 25 years I have driven through this canyon many times and this is the first road-runner I have seen in it. Dr. Grinnell took a census of birds at various stopping points with results which, I believe were gratifying to him--especially the recording of an Arizona Hooded Oriole in Hayward. On the 15th. Rhody was not seen here until 3 P.M., when he suddenly appeared on top of the cage, coming from the north, and immediately ran to the meat dish to get his meat. Half an hour or so later, after a good rest with spread-eagle sunfitting followed by neck-scratching, he received a mouse in the presence of a visitor (K,H,D.) treated it with full honors, mirror in- cluded. On the 16th. he was on the observatory tower when I left at about 10 A.M. At 3 P.M. I instituted a search for him on the west side of Dimond Canyon and inspected an old nest of his there. No Rhody, but when I got home he was sitting on the fence, cried, followed to the tool-house, gobbled a big mouse without ceremony. May 17th. At 9 A.M. Rhody was inspecting an automobile standing in the driveway, but was pleased to come and get a mouse, which he ate without ceremony. I incline to the belief that his mating urge is on the decline to a certain extent. At 1 P.M. he was lying, inactive, in nest 8-37. By 2 P.M. he was inside watching the magpies. At 2:30 (Reported by Julio) he wanted no mice. At 4 P.M. I found him again amusing himself with the magpies. When I sat down to watch, he came out and stood quietly by my chair Thinking he wanted food, I went to the tool-house, followed by him without enthusiasm, though he waited patiently at the door while I got a mouse. He looked at it, kept his place and cried. I got a tiny one. Same result. I offered him worms; he would not catch them and would not pick them up. He still cried. A pair of Brown Towhees now came with alarm cries. (They have a nest, from which the young have just departed, about 20 feet from where R and I were The youngsters were probably concealed in the shrubbery nearby). Rhody immediately became bright and interested, moved two or three yards to a branch that he favors, and began to scrutinize his immediate surroundings: ground, trees, bushes, without moving from his perch. The towhees calmed down and took up position just be- low the road-runner and remained there for several minutes. R made no hostile move, did not search for the young birds and composed himself for a good rest. The towhees seemed to abandon the thought that he was a source of immediate danger and went about their bus- iness of searching for food. Rhody next was seen at nest 8-37, where he remained inactive until nearly 6 o'clock. He then departed, presumably, for his night roost. May 18th. At 8:45 A.M., as I descended the steps leading to the drive-