Countryfile travels to Yorkshire and the Humber, a dynamic landscape where expansive skies take in views over its low-lying countryside and its dramatic coastline. Matt Baker is out on the Humber estuary. When the tide retreats it reveals a large expanse of saltmarsh and mudflats; beneath it, a banquet awaits the thousands of wading birds that flock here. But to make sure there is enough food for them, the marsh has to be managed. Matt finds out about a new project that has been set up which brings together farming and conservation. Also, he visits an agricultural college where the girls are giving the boys a run for their money when it comes to farming. It's not just the coastline that is a rich breeding ground for wildlife; Julia Bradbury discovers it can be found in the most unlikely of places. Leconfield is an MOD defence school for transport. It is here that military personnel learn how to drive combat vehicles; but away from the track, a small army of volunteers are doing their bit for nature. Julia joins them on a night-time operation looking for deer. Wildflowers were once a common sight in the British landscape, but in less than 70 years more than 95% of them have disappeared. Tom Heap finds out why. Down on the farm, Adam helps a friend buy a herd of Hereford cattle.