with full sunlight on their beds for the first time. (Owing to the southward movement of the sun's having brought it, at this time of day, into position where it shines through a gap between the house and a group of pines to the west). When the birds seemed fully composed for the night's rest, facing each other a couple of feet apart (but separated by the partition) I approached with their "night-caps" of meat pellets. They simul- taneously lowered their heads to the shelf, opened their bills wide and "maa-a-a"ed softly, just as Rhody does. There was a difference in pitch between the two sounds, the interval (which was not constant) being such as to produce a slight dissonance of irregular frequency. (To be verified). The mirror is still placed so that Rhody has ready access to it, in fact can not avoid seeing it very well whenever he comes to the cage. He is indifferent to it, though occasionally looking at his reflection in it casually. This attitude is practically that of the young birds when it was inside the cage. It suggest that his earlier enthusiasm was that of a bird in the presence of a mysterious stranger of its own kind that mocked his movements. Now the two young birds are quite obviously there to be seen in the flesh and present no mystery, behaving normally. Being no mathematician, Rhody perhaps is not excited when he sees three road-runners in front of him, any more than he is by two. Anyhow, the numbers are con- stantly shifting before his gaze and one more or less does not register with him. September 12th. About 9:15 A.M. both A and T became interested in a large black and brown caterpillar moving rapidly toward the cage . I put it through the wire. A got it first and instead of bolting it at once held it gently in his bill, shaking it slightly. (Here was chance to see what this ground-cuckoo would do as compared