and most obvious route via roads and paths he went up over the roof of the house by the most direct route physically possible, thus showing some conception of the location of the mirror with respect to this room. During the rest of the day he was nearly always to be found-- working at the nest, sitting quietly in it, watching the magpies, ec. His interest in these birds is again on the increase. There has been no renewed evidence of the presence of another roadrunner. May 10th. About 8 A.M., as I approached the nest tree, Rhody dropped down from it and trotted toward me--an indication that he was inclined towards mice, although rather early for him to be so int- terested. He followed me toward the shop, and without looking te= ward Brownie's nest at first, stopped abruptly at the foot of the tree in which it is built. He appeared to think, then looked up at the nest, went up near it and was promptly repulsed by the vigilant Brownie, Coming down to the ground with a disgusted boo, he followed me promptly into the shop for his rat. In this instance, as in others, Rhody seems to have retained something like an accurate picture in his mind of the surroundings of some focal point of interest. He could not see the nest itself from the point where he stopped on account of the screen. He could, of course, see the screen if he looked for it. I was watching him all the time for just this sort of behavior, but as far as I could tell, he was not guided by sight in the first instance. The present rat, like practically all of the others recently, was carried ceremoniously to the mirror, thence to 5-36. Several times during the morning Rhody carried up lining material: pine needles and the velvety stalks and leaves of the grey-green member of the Compositae. Whatever the significance may be, it is many weeks since Rhody has clapped his wings together over his back. 2P.M. Last June a hummingbird (probably Anna--the male was not seen there) reared a brood in a nest about 40 feet from the west window of the living room. The nest was allowed to remain untouched d and gradually became flatter and misshapen during the ensuing months. Winter rains reduced it to a dingy mass filled with debris. From time to time I have glanced at it in passing out of mere curiosity. Just now, in passing it, I noticed that it seemed fully restored to its original form, with new lichens and bits of green moss applied to the outside. Also there were many of what appeared to be, the "shells" of some sort of pupa forming part of the decoration. Inspection showed that it contained one egg, and in a few minutes, the nest was occupied by the female. This is the first instance within my knowledge of a hummingbird's having restored and occupied an old nest; perhaps in this case, reoccupied While looking at the nest I noticed two thrashers outside the fence in the bushes outside the fence. On call, both came to me and took worms from hand. Brownie's two youngsters of brood No.1 of 1936, manes and all. I have not been keeping in touch with them during the last few days, and was surprised to find them still tame outside their usual environment. Incidentally, while they were going about together in amicable relationship, when it