1358. Correction of thermometer readings in court. that the max. and min. instrument shows 2 degrees lower than the three standard instruments. Therefore, as regards temperatures quoted in these notes during this cold period, it is to be noted that those in the court should be raised 2 degrees. Rhody and R5 were not observed extensively during the day, but at 1 P.M. I was in the inner cage watching R5, who could probably see Rhody sunning himself down at the sage patch (because I could). At any rate R5 was interested in something in that direction and was wandering about in both cages to get a better look. I "coke-coked" several times, and whether it was due to that or not I do not know, but I soon caught a glimpse of the end of Rhody's tail as he came up the bank, switching back and forth side- wise (a courting gesture not seen for several months). When he came into full view under the rhododendrons on the level, he began to search in the mulching about them, picked up and object and made straight for the mirror, just outside the wire where I stood, ignoring R5 who was now in the outer cage watching him and picking up pine needles, etc. Arriving at the mirror, (it was seen that the "present" Rhody was carrying was an acorn) Rhody held it an inch or so from the glass, "champed" it with his bill, seemed to regard himself minutely, but without display of any kind, then dropped the acorn. He waited there a minute or two, occasionally looking up at me, then picked up a twig and went to look at R5, dropping the twig before taking up his station 2 feet from the wire near R5. There he stood quietly for several minutes without sound or display, R5 however, immediately busying himself with pine needles, small stones, an acorn, some of which he carried to the wire and dropped as near to R as he could get. He also reached through the wire toward Rhody and pulled at a small rock-plant growing there. All of this seemed to be for Rhody's benefit but regarded by that bird dispassionately. Rhody finally bolted back to the sage and R5 watched him go, so it seemed to me, with regret, and continued to look for him for a long time. R boomed once or twice on his way to the sage, but that was the only sound made by either bird during the episode. When I went down to Rhody he cried and muttered, but did not want the mouse offered him. (He had had meat an hour earlier). Thus far it will appear that R5 is much more interested in R than R is in him. R5 is a remarkably quiet bird--every sound that I have heard him make has been recorded in these notes. He still refuses to eat butcher's neat. January 26th. (Minimum in court during night 37- corrected temp.) At 10 A.M. rain began to fall. At this time Rhody was not in his roost, but when I searched through the bushes, he came out for his mouse, looking very meek. At 2 P.M. this was repeated. The hummers behaved normally throughout the day. At the M.V.Z. I was informed that an Anna hummer recently weighed by Dr. Miller, registered 3.9 grammes. My birds are eating more than half the contents of their 8 cc. vials, each--one a little more than the other--in 24 hours. Say 5 cc. each, or if it were water: 5 gm. each; but the mixture is undoubtedly heavier than water; further