This time Chris looks at grassland animals. Chris burrows into the grassland himself so that he can observe the eating habits of starlings, clever and well-adapted grassland predators. British starlings have had their ups and downs: they were once so common that they famously stopped Big Ben due to numbers perching on the clock hands, but nowadays their food supply is dwindling, thanks to modern pesticides. There are new revelations about how honeybees - insects vital for our future - manage to collect nectar and pollen. And how horseshoe bats, brown hares and barn owls are all learning to adapt to modern Britain in different ways.