Last night (5.4.12) I performed a moonwatch for 3x10 minutes from 9:55 - 10:30 pm. I observed a total of 26 birds sillhouetted by the moon. This included 19 UFOs, 3 warblerish birds, and 4 thrushy birds. Of the 19 UFOs, there was a flock of 6 birds.
The birds generally flew from the lower left quadrant to the upper right, with some birds going from 6 to 12 and others going 9-3. One bird did zip across going the other way.
I observed the birds from my driveway in Santa Barbara