Ptelka 1948 38 Aphelocoma Aug.29 Santa Cruz Island, Calif. The "krack" note of the insular race is different from that of the mainland forms, but difficult to describe, as it is only slight. Pitch seems to be the same, but the note is louder, more of a "kwoak" than "krack," somewhat reminiscent of a magpie call. The note is given mainly amongst scattered or loosely flocking individuals that are probably mostly if not all 1st year birds. One seen was clearly a bird of [the] year with not yet through the post-juvenal molt. Most surprising of the notes heard today was the "frog" note typically given by Cyanocitta in the Berkeley area and elsewhere. This note is what I have called the gurgle note. In quality it is similar to the note heard from insularis, but rather than being hoarse, coarse, a single grating note somewhat drawn out, it is broken into several parts with a prominent inflection toward the end. Aug.29 The soft "kruck" note heard. It seems to be more or less identical with that of coeleptica. Sept.9 kraa-ă - given singly, apparently a sort of location note.