2/5 Alison Steadman tells how the Canada goose and ruddy duck became British birds.
BBC Radio 4
1/5 Alison Steadman tells the story of how and why the pheasant became a British bird.
Miranda Krestovnikoff tracks down Britain's smallest resident owl in a Wiltshire village.
Helen Mark is in Ireland, looking at attitudes down the centuries to the peat bogs.
What will Britain's landscape look like in 2060? Tom Heap on our changing climate.
Miranda Krestovnikoff visits Dartmoor in search of ring ouzels, the mountain blackbirds.
Helen Mark is in Ireland to celebrate the ancient Celtic harvest festival of Lughnasa.
2/2 Mark Stratton visits Papua New Guinea to search for Queen Alexandra's Birdwing.
Joanna Pinnock discovers the UK's rarest frog, the pool frog, in deepest Norfolk.
Jules Hudson visits West London in search of the wildlife that calls the city home.