Rescued birds are to fly at sea for the first time since being found on the coast covered in an oil additive.
More than 300 guillemots and razorbills found covered in glue-like polyisobutene (PIB) four weeks ago have been cared for by the RSPCA.
Most of them were discovered on
beaches where they were found covered in the waxy substance.
The RSPCA said it hoped up to 29 birds could be released from a cliff top in the
area on Thursday. Portland
They are to be the first birds released from the West Hatch Animal Rescue Centre in
Taunton, . Somerset
Peter Venn, centre manager, said: "Just over 300 birds were brought in. Just over 100 had to be put to sleep. The substance wasn't a crude oil but it was still an oil."
Other affected birds were found in
Folkestone and on the Isle of Wight.
The RSPCA said there have been reports of birds found covered in the same sticky substance in