There it is!
He actually felt no need to drop them on one side of the bridge and wait for them to come out the other side. It was sufficient to just drop them in on the downstream side and watch the current carry them away.
And if you notice that this isn't really the same stick that he's dropping in in the earlier photos, then you're playing too close attention and probably have better things to do.
And if you notice that this isn't really the same stick that he's dropping in in the earlier photos, then you're playing too close attention and probably have better things to do.