Autumn
Iolo finds himself in the midst of a flock of thousands of fieldfares arriving from Europe to escape the colder continent, examining how they gorge themselves on berries in trees surrounding the smallest church in Wales. In the Usk Valley, bats feed before they hibernate in caves, and migrating ducks gather on Talybont Reservoir, ready for winter. Underground, cave spiders lurk, while sea trout head upstream to spawn in the rivers.
