973. Parent thrashers divide brood. B3 is most precocious youngster seen here. Unusual agility R here. May 29th. B feeds B3 only. N and B com- mmunicate. R comes. I go to nest to watch for arrival. Circe on job. I guess cor-e so and disclosed still two eggs. I moved down to the road at a rectly R's point of emergence. point where I thought Rhody would probably cross it. In just 1½ Takes him 1½ hours more! ho'rs he did, making directly for the nest, up the almost vertical 25 foot face of the cut. When I spoke to him from the car, he stop- (Later: Learned later ped for a few moments and then went on quickly. (he was seen carrying (snake meantime). Three eggs were found on the 18th. Road-runners (Dawson) are reported to lay irregularly; also one of the three has disappeared, so it is impossible to check the incubating period to date , though The young thrashers of nest 11 were promptly divided between Brownie and Nova as seems to be the custom when there are two. Bb3, the one supervised by Brownie, is rather precocious and allows close approach without moving away; he ran to me with B the morning of his second day off, and when B stopped a few feet away, came all the rest of the distance alone. That night he made short (downward) flights in seeking a roost and managed with considerable agility to climb up a slender baccharis branch, transfer to a hanging branch of the old oak and climb well up into it without guidance from B, who merely watched and then went off to perch in the acacia which he adopted as an alternate to the dormitory tree. May Rhody came again for his meat, though I did not see him. He left his lop-sided K tracks on the sand spread at the entrance of the cage. B confines his attentions to Bb3 exclusively and if I furnish him with enough food, does nothing else but loaf with occasional short song, which Nova sometimes answers with her peculiar, high voice. Rhody entered the cage for meat at 1:45, taking two large help- ings to which he added worms from hand. He left for the nest at 2:15. I wished to see him arrive, so drove there by car. (1.4 miles) When I got there Circe was on the nest, but left after a half hour or