Ornithologists throughout the south of England are descending on a churchyard in Bath to keep watch over the nest of a pair of peregrine falcons.
The female falcon on the spire of St John the Evangelist church in Bath has laid a clutch of four eggs.
The rare birds have fallen victim to egg collectors in the past, and the site will be protected by a 24-hour watch scheme.
Ornithologist Valerie James said there were excellent views of the nest.
"We should have wonderful views with the aid of 'scopes and anyone who is really interested should go along and take advantage of a stunning bird on your doorstep," she said.
The eggs are expected to hatch in early May.
Peregrines are protected birds in the UK and the RSPB says their numbers are still low.
