Countryfile is in Kent, where Matt Baker is exploring the magnificent Leeds Castle as it celebrates its 900th anniversary. He tries his hand at a spot of falconry with the castle's resident birds of prey. Margherita Taylor is visiting a nature reserve where our feather friends are flocking in. She also meets the farmer whose fussiest customers are gorillas and elephants! And Adam Henson is finding out that this time of year can be difficult for our farmland birds. Tom looks at the problems of waste plastic on farms. UK recycling facilities are so flooded with domestic plastic waste that options for dealing with agricultural plastic are shrinking whilst farmers' waste stockpiles are growing.