Today is cloudy and much colder. I expected the birds to be mobbing the feeders, but they weren't. So I went out to refill the feeders and found them all empty. Even the ground underneath was picked clean of everything but hulls. The flocks were there watching me, though. By the time I got back indoors, they were coming back. I saw at least three pairs of cardinals, a large flock of sparrows, and a large flock of mourning doves. :D Need to get more birdseed.