If you don't have it already, this from LDS:-

Ernest Thomas Eagles
England Births and Christenings, 1538-1975
christening: 1 April 1877 St. Peter's, Almondsbury, Gloucester, England
residence: Almondsbury, Gloucester, England
father: Henry Thomas Eagles
mother: Fanny

Ernest Thomas Eagles
England, Bristol Parish Registers, 1538-1900
christening: 1 April 1877 Pilning, St Peter, Gloucestershire, England
residence: 1 April 1877 Pilning, St Peter, Gloucestershire
father: Henry Thomas Eagles
mother: Fanny Eagles

Ernest Thomas Eagle
England and Wales, Birth Registration Index, 1837-1920
Birth Registration 1877 Thornbury, Gloucestershire, England

The places are across the water just outside Bristol. Could this be anything to do with them?