14 April 2013 Last updated at 11:15 ET

Dead birds have been washed up on beaches in Devon and Cornwall, the RSPCA has said.

It said it had received reports of birds being washed up at Port Wrinkle and Whitsand in Cornwall, as well as Wembury and Heybrook Bay in Devon.

More than 100 birds were found dead on one section of beach between Downderry and Seaton, in south-east Cornwall, on Sunday morning.

Dog walkers have been told to keep their pets away.

BBC reporter Jane Chandler said RSPCA staff were "taking away sackfuls of dead birds" between Downderry and Seaton.

Dead and alive birds were also reported covered in an oily substance on a beach at Bantham in south Devon.

The deaths follow those of scores of other birds covered in a "sticky substance" being washed up on the south coasts of the counties in the past week.

More than 90 birds covered in the substance, mostly guillemots, washed up between Mevagissey in Cornwall to Kingsbridge in Devon.

The RSPCA said its West Hatch wildlife centre in Taunton, Somerset, was still looking after more than 60 birds.

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Concerns over dead birds on beaches