LONDON (AP) _ Looking spry despite her nearly 100 years, Queen Mother Elizabeth on Sunday presented traditional shamrocks to members of the Irish Guards.

The Queen Mother, whose birthday is in August, stood to took the salute at a regimental parade led by the Irish Guards, holding lightly onto a railing for support and only briefly using her walking stick.

The tradition of giving shamrocks to the Irish Guards was started by Queen Alexandra, wife of King Edward VII, in 1901.

Separately, the Queen Mother's great-grandson, 15-year-old Prince Harry, was confirmed Sunday at the chapel of Eton College. Harry's father, Prince Charles, and his brother, 17-year-old Prince William, also attended the service.

Meanwhile, her daughter, Queen Elizabeth II, and Prince Philip, the Duke of Edinburgh, were greeted by about 500 people Sunday in Canberra, Australia. It is the queen's 13th visit to Australia, and the first since November's referendum that rejected a plan to cut ties with the monarchy.