dangling from the bill of a roadrunner, produces like oscillations in the body of the bird, which then swings about (in a horizontal plane) the bird's center of gravity. Also a mouse is sufficiently heavy to cause the bird to carry his head well back (somewhat like a duck). This gives him a proud bearing, on such an occasion. Further, as the birds gape is located as far back as the eye and the bill is not entirely closed, he appears to be grinning. Rhody finally left the window and perched for 10 minutes on the railing of the porch, from which he has a good outlook. When he wandered off back across the street to the lot west of my house, I ceased to follow, but when last seen he still had the mouse. At no time did he call. At 3:45 he was back at the cage, mouseless, ready for more meat and another good look at the young birds. He is still de- cidedly larger than either of his off-spring. He was not heard to sing all day. Every time I visited the thrasher nest today there was a bird in it that refused to come off. Normally this means eggs. (But see note of Mar.6th). Terry still has not lost two of the cut-off feathers in his tail. As all the others that were cut off were moulted, this suggests that, if the mature feather is merely a dead appendage, perhaps then, when the injury occurred to them, those that were shed were still growing and partaking of the life processes of the bird. For some time I have suspected that the scales on Brownie's lower tarsi and feet are getting much coarser. Examination shows such to be the case and the question naturally arises as to whether this is a sign of age. He is, I think, singing less than he did in former years: but only a careful comparison of notes can show. March 6th. Rhody was not heard calling this forenoon until after he had visited the cage at 9:30 A.M. He came again at 1:10 P.M. (Perhaps earlier, I was busy in the meantime elsewhere). He again stared at the youngsters a long tim and again went to the roof to get nearer to Terry (instead of A as yesterday). T seemed a little afraid of him, but hanked in ap- proved form, while A was indifferent. Just the reverse of yester- day. A change of shift was observed at the thrasher nest at 2:15. I find now that a bird can be in the nest without being visible from the sidewalk below (or any other place) on account of the dense foliage. The nest can not be seen into from the ground and a ladder or a platform would be too public. Also the tree (bush) is too thorny to climb with comfort. From this it will appear that previous observations of the nest's being empty are not re- laible. March 7th. Rhody called a little during the day from the chimney and elsewhere nearby and did not seem to wander far. He climbed to his regular roost at 4:55. (Bright and warm, sunset 6:09). From this roost the entire western horizon between maximum southern sunset point and farthest northern sunset point is visible. This horizon is about 15 to 30 miles away). (The latte when the sun sets, as seen from there, behind the ocean itself). All three of his known roosts have had this unobstructed view of.