Have you ever seen what a kingfisher does to a minnow when it plucks it out of the water? It's not a pretty sight. Kingfishers don't have beaks lined with felt. When the swoop down on a minnow and nail them with their beak, I don't think they're gonna be gently moving them to a new body of water for release but I could be wrong. Doesn't take much water for a fish, especially an FHM to swim in...