Presented by Derek Jones Clegg and Coe
'A wren, heading towards an island, flopped down into the sea just five yards short. It floated like a duck and then took off and flew on. Is it usual for wrens to float? Can't they fly very far without a rest?'
Michael Clegg and Malcolm Coe attempt to answer another batch of listeners' questions. Producer MICHAEL BRIGHT BBCBristol
(Re-broadcast next Saturday)