Volcanic ash may have grounded transatlantic flights of the man-made variety but it has not deterred one rare American visitor from dropping in to see its English cousins.

A Bonaparte's Gull, or Chroicocephalus Philadelphia, has been seen at South east Water's Arlington Reservoir, near Berwick, Polegate. It arrived on Sunday and has decided to stay.

As a result, the site is being invaded by hordes of twitchers desperate to catch a glimpse of the bird.

Emma Goddard, environmental manager at South East Water, said: “The Bonaparte's Gull is the American equivalent of our own, more common black-head gull.

“This is the first time we have seen one at Arlington Reservoir and it's certainly caused a bit of a stir among the bird watching fraternity.

“We had up to 100 of them at one point all clamouring to catch a glimpse of this gull which, despite the problems of Mother nature has caused elsewhere with flights, seems to have decided to venture across the pond.”