Traveling over Loch Lomond; seasonal fungi displays in Scotland.
Bill attracts marsh frogs by imitating them; the Adonis blue butterfly.
Bill searches for the rare Norfolk hawker dragonfly, marsh harriers and swallowtail butterflies.
Bill spends the day looking at wild flowers in Northumberland.
Bill visits Dorset in early summer, in search of Britain's six native species of lizards and snakes.
Korean sea squirts; Raven; Urban fox.
Winter wildlife in the Scottish Highlands.
Paddling for leeches and crawfish in the Lake District.