Lone Robin territorial of our feeders

[Beth Fox]

A lone robin here in Wolfeboro has been putting on a show here,  settled in a fly-through feeder for hours, leaving only to drive the bluebirds and white-throated sparrow away from the other feeder, 20 feet away.    He could not easily sit on a smaller feeder, so he  propped himself on the edge and scooped seed onto the baffle below, so he could get it.  Think he is after dried worms I have mixed with the seed.  The squirrel baffle is now covered with seed he didn't want.  This is the third day of this behavior.  He appeared after the snowstorm, so I guess he is waiting for the snow to melt!  Anyone out there seen behavior like this?