In this programme Iolo looks at how man has left his mark on the landscape of Wales.
In Ffos y Frân, Merthyr Tydfil there is a land reclamation scheme. Until 2007 there were coal and iron works here. Today it is a home to water birds and the lapwing.
The Point of Ayr (Y Parlwr Du) gas station, Flintshire processes gas that comes from rocks under the sea. It is a home to rabbits and hares, to birds of prey and to a family of foxes.
The Army has been training here on Mynydd Epynt since the 1940s. There are no people living there now but it is a home to all kinds of wax caps – a fungus.
Holyhead (Caergybi) harbour is very busy. It is a home to many gulls and also to the black guillemot that lives in holes in the harbour wall in summer.
Nature has come back to the old limestone quarry in Llanymynech, Powys. It is a home to the kestrel and peregrine falcon. Here too there are butterflies and dragonflies and a number of orchids.
The old Pen-ffordd Quarry near Wrexham is now a nature reserve. Today it is a home to the cuckoo flower and cuckoo bee. It is also a home to the acorn mite, the crane fly and beetles.
Today they are burying waste at Cilgwyn quarry in the Nantlle Valley. The old slate quarry is home to gulls and crows that look for food in the waste.
Man has left his mark on the landscape in Cwm Ystwyth, Ceredigion. And on Mynydd Parys, Anglesey the landscape is like something from the Planet Mars. The land is very acidic but it is a home to lichen and heather.
Blaenafon today is home to the short-eared owl that looks for mice. And near Aberdare (Aberdâr) and old coal tip is a home to trees, lichen and heather.
Today in the old Dorothea slate quarry in the Nantlle Valley, there are birch, willow and oak trees and moss and ferns grow where people worked.
The old slate quarry at Abereiddi near the sea in Pembrokeshire is a home to the jackdaw and the storm petrel. And plants like sea campion and navalwort grow here.
