Eyesight of young road-runners. Their vision is good. They seem to observe everything and spot hawks sailing overhead several hundred feet high. They did not mind the audience, with the exception of the pigeons at whom they stared unblinkingly. First attempt to kill lizard in adult manner. Archie, in handling the dead lizard, beat it upon the ground just like an adult road-runner. First time noted. (D.r. with food) First seeking roosting place. About 4:15 P.M. yesterday and repeated today, both A and T began to get restless and look for places to roost. Yesterday was the first instance. They sought high places. To see what they could do they were put in a cage about 3 feet square and about 4 feet high having its top amongst the branches of a tree. They were able to reach the topmost perch and tried to get higher and into the branches of the tree. This being impossible, they settled themselves on perches prepared to spend the night like old-timers. This was their first experience of the kind. First discontent with confinement. They were removed to their regular sleeping quarters in the small cage, and (again another "first time") were discontented and tried to get out--even through the top. A cloth covering all but one side of the cage was placed and they subsided contentedly at once; apparently the instinct which impels them to seek high perching places on which to roost at a certain stage of their development being submerged for the time being by the effect of familiar com- forts. But the little fellows are growing out of the baby stage. They will soon be able to get out of the shop yard when allowed to run there by climbing the vines on the wall. Nascent roosting in- stinct tempo- rarily checked. Growing up. Back to the Thrashers again. Roughneck is still here, so that we have the unusual condition Bb2 still hereof two broods being here at the same time. The fact that the two together amount up only to three, which is the usual full brood when there are no accidents, may have caused Brownie, who is no mathematician, to get tangled up in his arithmetic, thus granting a longer period of residence to Bb2.