The Victoria Memorial is a sculpture dedicated to Queen Victoria, sculpted by Sir Thomas Brock in London, placed at the centre of Queen's Gardens in front of Buckingham Palace.
The Memorial was dedicated in 1911 by George V and his first cousin, Wilhelm II of Germany, the two senior grandsons of Victoria. The sculptor was Sir Thomas Brock. It was completed with the installation of the final bronze statues in 1924. They were cast at Burton’s Foundry, Thames Ditton.
The surround was constructed by the architect Sir Aston Webb, from 2,300 tons of white marble. It is a Grade I listed building. Link
These are Great White Pelicans (Pelecanus crispus), as were the original London Parks birds donated by Russia. There is also however, I understand, a single American Brown Pelican (Pelecanus occidentalis) with them now.