Mystery bird -- possibly solved

Recently, possibly at the Minicon work party last Wednesday, I mentioned to some people that there was this bird that had been hanging around my back porch. I tried to get a photo of it, but apparently came too close and spooked it.

I'm not any sort of a birder, but to me it looks like a cardinal, except that it's green and yellow rather than red. Someone (arkuat?) did some googling, and discovered that there are green and yellow cardinals, but they're normally found in South America.

Today, for what it's worth, there was another bird, a cardinal -- a normal, North American, red cardinal -- hanging out with it. So I went looking for photos of female cardinals, and saw that while most of the photos had the female as fairly drab, some of them showed the female as having some yellow and green. So I think the likeliest thing is that I have a female cardinal that likes my back porch for some reason.

Here's a very poor photo that shows the colors decently. Today I got what I thought was a better photo, but it turned out to be sufficiently shadowed that the colors weren't really visible.



Can anyone confirm?