Jason Price brought in a sand wasp from near the Columbia College housing, near the volleyball area, 20 July 2018. There were many sand wasps there, and they were bringing in flies to provision their nests.
At about 10:45 pm, 8 July 2018, we heard loud crackling sounds, followed by breaks, crackling and thuds. Heather and I went over, using spotlights, and found that a number of branches of large valley oaks had broken off. I took these photos the next morning. It appears that five large branches fell, from three different valley oaks. A dominoes effect must have occurred, with one very high branch taking down another, high branch on a different tree, and they took out everything beneath them.