Hundreds of birdwatchers have gathered in this small island off the Scottish coast for a glimpse of a rare visitor that is believed to have traveled 6,000 miles from Siberia.

"The bird is most probably a Pallas's Rosefinch, which has never been recorded in Britain before," said Eric Meek, an official of the Royal Society for the Protection of Birds.The finch, which looks like a large, brightly colored sparrow, summers in Siberia and winters in southern China and Japan.

British birdwatchers are informed about the sighting of unusual species by a telephone service named Birdline.