We spent most of our time in the upper and lower gardens looking for unusual sparrows and others. Among some of the birds that we saw in the lower gardens were cardinals, flickers, goldfinches and house finches. A few people saw a blue headed vireo. Haynes and I somehow missed it, but luckily we had a beautiful view of one down near the soccer field, looking very much like a kinglet they way it was flitting around in the trees.
On the way to the upper gardens we saw a swallow overhead which is quite unusual for this time of year. I don't believe anyone could definitively identify what type it was (possibly tree?).