Yesterday, blackbirds sang for Edward Thomas.

Today his namesake R S Thomas responds to the blandishments of blackbird song. The Welsh poet cleric finds a dark edge to enchantment in this piece from his Collected Poems 1945-1990 (Phoenix Press, £14.99).

A BLACKBIRD SINGING

It seems wrong that out of this bird,

Black, bold, a suggestion of dark

Places about it, there yet should come

Such rich music, as though the notes'

Ore were charged to a rare metal

At one touch of that bright bill.

You have heard it often, alone at your desk

In a green April, your mind drawn

Away from its work by sweet disturbance

Of the mild evening outside your room.

A slow singer, but loading each phrase

With history's overtones, love, joy

And grief learned by his dark tribe

In other orchards and passed on

Instinctively as they are now,

But fresh always with new tears.