The practice of winter grazing has people talking - we talk with environmentalist Angus Robson, as well as Southland farmer Jason Herrick - he took exception to people taking photographs of his land and herd to highlight concerns about winter grazing. National's Todd Muller makes his debut on REX, and we're joined by regular guests weatherman Richard Green and Angie Skerrett, Newshub Rural Editor.See omnystudio.com/listener for privacy information.