Mine have gotten fickle regarding nesting boxes.  When they were younger, and smaller, I started them off in milk crates with hay.  The got too big for that, so I got a bigger crate.  Nope, they wanted nothing to do with the bigger crates.  I got totes, and cut a door out.  Nope, that didn't suit them.  One day I walked in, and discovered they had tipped the tote over on one side, and the top fell off.  There in the crate, laying on it's side, were eggs.  Son of a gun, they still like to use the tote that way.