1956 Aphelocoma coerulescens Feb. 27 U.C. campus, Berkeley. Male observed in what is apparently a pairing display, seen by me only once before, some years ago, a female feeding on open lawn five feet or so away from an edgey streamborder thickets was circled by a male which held its wings partly open, and dropped, its tail spread, and its body held tack as well as its head up as it moved in a hop-walk around the ♀, about a foot from her, not completing the circle, turning, retracing the partial circle, turning again, doing this 6-7 times before flying off. The display was one-sided in that the wing on the inside of the circle, next to the female, was spread out more and dropped more than the other; and the tail was angled spread out more, on to the same side. This asymmetry as well as the incompleteness of the circles appeared to be features resulting from the male's actions in addressing his display to the female; thus, once to rounded her at front and sides, he reversed to face before her again. In doing this, he held up a, he uttered the soft jumble of notes frequently,