Well, every spring we get two mallards that feed off the algae in our creek, my dog's been trying to get them for years now, this year, I finally trained him to leave them be, so now he just sits and stares at them......BIG MISTAKE - as of yesterday morning 5:30 AM, I now have 2 mallards splashing around in my pool morning and night.
I'll try putting my solar cover on tonight to see if that will discourage them.....if not, "ducks a l'orange" it is.