Then as some sulphurous spirit sent By the torn Airs distemperment, To a rich Palace; finds within Some Sainted Maid , or Sheba Queen

The mournful crocodile / With sorrow snares relenting passengers.

The name fireback comes from this bird's dazzling plumage.

Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet. Perhaps we assume that our name, address and search preferences will be viewed by some unseen pair of corporate eyes, probably not human, and don't mind that much.