WIFE Sylvia had a cough so I passed her the Strepsils. Looking out of the window at the time I noticed that none of the birds enjoying their breakfast were coughing. I don't think they do. Cows, horses and sheep do.

Later, at the fish pond, they weren't coughing either. Come to think of it, I have never seen an insect or frogs coughing, although frogs do croak. Just a thought.

George Appleby, Clifton, York.