Why one poultry farmer rethought illumination from the jungle up When Robert Lanning of Devonshire Poultry talks about lighting, he doesn’t start with LEDs. He starts with trees. “I’ve always tried to relate things back to nature,” he says. “If you look at chickens for what they are, not just what we’ve bred them into, they still come from jungle fowl. They evolved under tree canopies, with sunlight breaking through leaves. That’s never an even, white light.” That way of thinking is what led the Devon poultry farmer to become, as far as he knows, the first in the UK…