There's been total silence for the past 15 minutes. I've been wondering in and out but am getting nothing from anyone until just now. The crow called out, I can hear him now.
It's like in the olden films when a bell tolled, magically calling everyone to gather. He's still calling moving from house top to house top. Each time he calls three times in pattern and then goes quiet. It's been going on for a couple of minutes now, but still I hear not another sound and I see no other movement from any of the other birds.
It must be something pretty big and serious for the crow to get involved. He usually just sits there telling stories to the rest of bird land and anyone else who will listen.