Trying to get it before the other guys gets it all

My brother found away to get his picky chihuahua to eat her dry dog food. He sets a small piece on the floor for his cockatiel Nicole and Coco will eat it all, just to keep the bird from eating it.  He says “these two have taken to trying to nudge each other out of the way as they compete for attention. But they can’t seem to stay away from each other.”  We all know folks like that, huh?