These are not to scale, but are about life size. In the young birds, A and T, the hook does not project below the lower mandible, but in Rhody it does, thus: August 13th. to 16th., incl. During this period Archie's bill has become progressively worse and it looks as if the tip would come off entirely. I got a glimpse at it from the inside and a crack extends all the way across there also. He can not now manage a full grown, live mouse, but very young ones are still within his capacity. This injury has made him much less domineering in his attitude toward T, although he never has been really disagreeable about it. Terry seems to realize that a change has taken place and defers to A less, in fact on one occasion when A became too curious about a mose that T was handling, T gave him a good peck, hard enough to make Archie cry out and run away without attempting to retaliate. Road-runners are not eaters of carrion. All three road-runners are particular about the freshness of their food. Two large mice were killed about 24 hours ago. Neither Archie nor Terry had been able to managed them while living. Archie could not handle his even when dead and Terry rejected his after several trials. They were offered to the youngsters several times during the 24 hour period but were refused notwithstanding that both birds, during that time, accepted smaller mice, both living and freshly killed. At about 4 P.M. on the 16th. one was offered to Rhody, who promptly took it from hand, beat it upon the ground, but rejected it after he had almost completely swallowed it. He stood looking at it for several minutes, but not touching it, and wiped his bill frequently on the ground and "tatsted".