a sad story

the little birds in the nest near the front gate were doing well.  i went out yesterday and the nest was empty.  leaving the nest and learning to fly.  the nature of things.  but ...  as i walked to the car i saw the saddest little sight.  two little bodies.  devoid of life.  i wonder what happened to them.  it may have been cats, or bigger birds, or perhaps they weren't ready to leave the nest.  i don't know.  i don't think isis, my neighbour's cat, would have hurt them coz she is old and spends her time sitting in the sun in the car park.  oh dear.