Heh, getting close enough to get a photo with my camera (which does not have much of a zoom) is the problem.

I think they might be Cassin's Finches, but if so, they're kind of out of place right now. They're supposed to be at higher altitudes this time of year. We're only at 1700 feet.

And I'm not sure the pictures match my observations exactly. They are close, but our male has more striking crimson red on his head and back, and I don't recall the purplish hues on the throat.

Song sounds about right, though.

Update: Got a better look at the Male today, I take back what I said above. I'm now nearly certain they are Cassin's Finches.