Peregrines can fly at 200mph

Thanks to the latest technology, the chicks can be glimpsed in their cliff-edge nest, being fed by their mother.

"Peregrines are said to be the most spectacular and fastest bird of prey," said Sian Howell of RSPB Cymru.

"They can dive at speeds of up to 200 miles per hour, attacking their prey in the sky like lightening."

It is likely to be several weeks before the South Stack chicks can swoop at such high speed but the camera will be following their progress 24 hours a day.

Pictures of puffin are also being transmitted onto the internet site and can be seen jostling each other for space on the busy sea cliff ledges.

From now until the end of July the ledges will be crammed with breeding guillemots, with each pair incubating a single egg on their feet.