I live in Elk Grove and seen and heard those flocks lately also. I agree with Spoony in that there's a Stone Lakes/So. Sac Co. flyway. It's late and I think it'll stay that way through the next years. The rice is planted earlier in the north and they'll stay and feed as long as they can. Their northern breeding areas are getting crowded and they may feel there's no rush to get up there when it's still good down here. My .02 cents. Maybe we'll get a late season speck hunt like the cak's!