We got home with our new chicken protectors about 90 minutes ago. Not exactly geese, though. My wife is calling them George and Gracie, but I'm actively lobbying against those names.
The girl (red collar) did a little chasing, but it looked like play and not prey. They both have accepted us, but stay with me (at my heels) when my wife and I separate.
One promising thing: one of the pullets was off in the pig yard alone, walking back and forth along the fenceline, clucking. The dogs immediately went to her, and started pacing back and forth and whining. It sure looked like they recognized that she was separated from the flock and that it bothered them, but maybe I'm reading too much into it.
These pups are four months old, and have grown up with chickens. Their mother got a uterine infection right after they were born and her milk dried up, so they were bottle-raised. They're about the friendliest dogs I've ever seen, which does discourage me with regards to human predators, but maybe they'll still get after someone trying to steal a chicken if they need to.
So far, so good.