Iolo visits Denbigh Moors to see his favourite bird, the rare hen harrier
Iolo Williams visits Denbigh Moors 15 years after he started filming wildlife programmes to see how the rare hen harriers have been doing since them.
It was finding a hen harrier's nest with eggs that sparked his interest in birds and wildlife when he was growing up in mid Wales.
Over the last three decades he has studied them, and even protected nest sites in his former role for the RSPB.
And so he visits a breeding pair on Denbigh Moors to see for himself how they are getting on in the programme,
Iolo's Wild Times
(BBC 2 Wales, 9 February 7.30pm).
Back in 1997 when Iolo made a programme, Visions of Snowdonia for the BBC, he was afraid the hen harrier might disappear altogether from Wales.
Then, he was on the frontline in his work as an RSPB warden monitoring nests at risk from egg collectors and gamekeepers.
Iolo says: "These are amazing, rare birds. They are in the wildest, most remote and most harsh areas and there aren't many of them. To find them you've got to put in a lot of hard work."
Denbigh Moors, also known as Hiraethog, is one of a view sites in Wales where the birds of prey are nesting.
But even hen harriers are prone to predation as chicks nest on the ground among the heather and are a target for foxes.