Pitelka 1948 Aug. 29 Aphelocoma the jay raised its head in time with some slight inflection in the song. Most interesting was soft, hoarse, cough-like note, given twice each of three times and accompanied by a forward dip of the body. During all other parts of the song performance, the jay retained more or less normal perching posture. This dipping behavior and accompanying cough-like notes has not been observed in the mainland races. 9:00 a.m. of adults Aug. 31 - Auto observed about 1/4 mi SW of camp in main canyon. Feeding quietly in upper branches oak, moving about frequently, sitting quietly for periods of a minute or so, giving themselves occasionally, then picking insects off this side of a main vertical branch, or climbing up into the twigging and picking an acorn which was then pounded. The two birds moved about within a few feet of each other, one occasionally following the other out of curiosity when the latter found some food item and repeating its search. In their movements through the branches, they do not accents to heavier or slower than the mainland birds. 9:10 - A third jay flew towards us, flushed momentarily in a dead tree overlooking the canyon beds; then joined the pair under observation. A short chase ensued immediately. I could not see the birds for a few moments, then seemed more distinct chase took place up canopy. The chasing bird calling in hoo-hoo-hoo loudly. One of the pair, presumably the