Just a few minutes ago, I saw this bird in the small “greenbelt” (really just a horribly unkempt backyard) behind my apartment building.
I’d guess it stood about 18-20 inches tall, and it was the size of it that struck me more than anything (that’s what she said). I’m no bird expert, but I’ve definitely never seen a bird anything like this around here.
The picture is kind of blurry, I didn’t have time to get a better shot before it ran off, but I think it gives you a decent idea of what it looks like.
Given San Francisco, go with turkey. Turkeys have become quite common in the SF Bay Area. Common enough that they are being considered nuisances in some places.