Surf Scoters during the herring spawn. The herring have been spawning on and off for a week. There are billions of eggs on the bottom of the river that attract many types of birds that feed upon them. There are thousands of Surf Scoters that fly off of the ocean on to the river to feed at sunrise. Here we have a large flock diving to feed and then an example of the mass take off as all the birds decide they need to be somewhere else.